Recent Publications by FWIH
2024(1) 2023(2) 2022(3) 2021(4) 2020(5) 2019(6) 2018(7) 2017(8) 2016(9) 2015(10) 2014(11) 2013(12) 2012(13) 2011(14) 2010(15) 2009(16) 2008(17) 2007(18) 2006(19)
2024-
A. Luferau, M. Obst, S. Winnerl, A. Pashkin, S. C. Kehr, E. Dimakis, F. G. Kaps, O. Hatem, K. Mavridou, L. M. Eng, M. Helm
Hot-Electron Dynamics in a Semiconductor Nanowire under Intense THz Excitation
ACS Photonics 11, 3123 (2024)(20) -
D. Hilliard, T. Tauchnitz, R. Hübner, I. Vasileiadis, A. Gkotinakos, G. Dimitrakopulos, P. Komninou, X. Sun, S. Winnerl, H. Schneider, M. Helm, E. Dimakis
At the Limit of Interfacial Sharpness in Nanowire Axial Heterostructures
ACS Nano 18, 21171 (2024)(21) -
T.W.J. Metzger, K.A. Grishunin, C. Reinhoffer, R.M. Dubrovin, A. Arshad, I. Ilyakov, T.V.A.G. de Oliveira, A. Ponomaryov, J-C. Deinert, S. Kovalev, R.V. Pisarev, M.I. Katsnelson, B.A. Ivanov, P.H.M. van Loosdrecht, A.V. Kimel, E.A. Mashkovich
Magnon-phonon Fermi resonance in antiferromagnetic CoF2
Nat. Commun. 15, 5472 (2024)(22) -
H. Shiravi, A. Gupta, B. R. Ortiz, S. Cui, B. Yu, E. Uykur, A. A. Tsirlin, S. D. Wilson, Z. Sun, and G. X. Ni
Plasmons in the Kagome Metal CsV3Sb5
Nat. Commun. 15, 5389 (2024)(23) -
M. Wenzel, E. Uykur, A. A. Tsirlin, S. Pal, R. M. Roy, C. Yi, C. Shekhar, C. Felser, A. V. Pronin, M. Dressel
Intriguing low-temperature phase in the antiferromagnetic kagome metal FeGe
Phys. Rev. Lett. 132, 266505 (2024)(24) -
B. Shen, V. A. Ginga, A. M. Arevalo-Lopez, G. Garbarino, E. Uykur, M. V. Goncalves-Faria, P. K. Mukharjee, P. Gegenwart, A. A. Tsirlin
Magnetic versus nonmagnetic polymorphs of RuBr3 under pressure
Phys. Rev. B 109, 224402 (2024)(25) -
X. Sun, A. Pashkin, F. Moebus, R. Hübner, S. Winnerl, M. Helm, E. Dimakis
Separated Electronic and Strain Interfaces in Core/Dual-Shell Nanowires: Unlocking the Potential of Strained GaAs for Applications Across Near-Infrared
Adv. Funct. Mater. 34, 2400883 (2024)(26) -
M. V. Gonçalves-Faria, A. Pashkin, Q. Wang, H. Lei, S. Winnerl, A. Tsirlin, M. Helm, E. Uykur
Coherent phonon and unconventional carriers in the magnetic kagome metal Fe3Sn2
npj Quantum Mater. 9, 31 (2024)(27) -
M-J. Kim, S. Kovalev, M. Udina, R. Haenel, G. Kim, M. Puviani, G. Cristiani, I. Ilyakov, T.V.A.G. de Oliveira, A. Ponomaryov, J-C. Deinert, G. Logvenov, B. Keimer, D. Manske, L. Benfatto, S. Kaiser
Tracing the dynamics of superconducting order via transient terahertz third-harmonic generation
Sci. Adv. 10, eadi7598 (2024)(28) -
S. Regensburger, F. Ludwig, S. Winnerl, J. M. Klopf, H. Lu, H. G. Roskos, S. Preu
Mapping the slow and fast photoresponse of field-effect transistors to terahertz and infrared radiation
Opt. Express 32, 8447 (2024)(29) -
K. Lin, X. Sun, F. Dirnberger, Y. Li, J. Qu, P. Wen, Z. Sofer, A. Söll, S. Winnerl, M. Helm, S. Zhou, Y. Dan, S. Prucnal
Strong Exciton–Phonon Coupling as a Fingerprint of Magnetic Ordering in van der Waals Layered CrSBr
ACS Nano 18, 2898 (2024)(30) -
P. Makushko, S. Kovalev, Y. Zabila, I. Ilyakov, A. Ponomaryov, A. Arshad, G. Lal Prajapati, T.V.A.G. de Oliveira, J-C. Deinert, P. Chekhonin, I. Veremchuk, T. Kosub, Y. Skourski, F. Ganss, D. Makarov, C. Ortix
A tunable room-temperature nonlinear Hall effect in elemental bismuth thin films
Nature Electronics 7, 207 (2024)(31)
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S. Polatkan, E. Uykur, J. Wyzula, M. Orlita, C. Shekhar, C. Felser, M. Dressel, and A. V. Pronin
Magneto-optical response of the Weyl semimetal NbAs: Experimental results and hyperbolic-band computations
Phys. Rev. B 108, L241201 (2023)(32) -
S. Polatkan, E. Uykur, I. Mohelsky, J. Wyzula, M. Orlita, C. Shekhar, C. Felser, M. Dressel, A. V. Pronin
Exchange gap in GdPtBi probed by magneto-optics
Phys. Rev. B 108, L201201 (2023)(33) -
J. W. Han, P. Sai, D. B. But, E. Uykur, S. Winnerl, G. Kumar, M. L. Chin, R. L. Myers-Ward, M. T. Dejarld, K. M. Daniels, T. E. Murphy, W. Knap, M. Mittendorff
Strong transient magnetic fields induced by THz-driven plasmons in graphene disks
Nat. Commun. 14, 7493 (2023)(34) -
S. Sobolev, A. P. Lanz, T. Dong, A. Pokharel, V. Kabanov, T.-Q. Xu, Y. Wang, Z.-Z. Gan, L.-Y. Shi, N.-L. Wang, A. Pashkin, E. Uykur, S. Winnerl, M. Helm, J. Demsar
Possible Eliashberg-Type Superconductivity Enhancement Effects in a Two-Band Superconductor MgB2 Driven by Narrow-Band THz Pulses
Phys. Rev. Lett. 131, 186903 (2023)(35) -
G. Jarc, S. Y. Mathengattil, A. Montanaro, F. Giusti, E. M. Rigoni, R. Sergo, F. Fassioli, S. Winnerl, S. Dal Zilio, D. Mihailovic, P. Prelovšek, M. Eckstein, D. Fausti
Cavity-mediated thermal control of metal-to-insulator transition in 1T-TaS2
Nature 622, 487 (2023)(36) -
T. A. Uaman Svetikova, T. V. A. G. de Oliveira, A. Pashkin, A. Ponomaryov, C. Berger, L. Fürst, F. B. Bayer, E. G. Novik, H. Buhmann, L. W. Molenkamp, M. Helm, T. Kiessling, S. Winnerl, S. Kovalev, G. V. Astakhov
Giant THz Nonlinearity in Topological and Trivial HgTe-Based Heterostructures
ACS Photonics 10, 3708 (2023)(37) -
M. Wenzel, A. A. Tsirlin, F. Capitani, Y. T. Chan, B. R. Ortiz, S. D. Wilson, M. Dressel, E. Uykur
Pressure evolution of electron dynamics in the superconducting kagome metal CsV3Sb5
npj Quantum Mater. 8, 45 (2023)(38) -
I. Fotev, S. Winnerl, S. Aswartham, S. Wurmehl, B. Büchner, H. Schneider, M. Helm, A. Pashkin
Ultrafast relaxation dynamics of spin density wave order in BaFe2As2 under high pressures
Phys. Rev. B 108, 035101 (2023)(39) -
A. A. Tsirlin, B. R. Ortiz, M. Dressel, S. D. Wilson, S. Winnerl, E. Uykur
Effect of nonhydrostatic pressure on the superconducting kagome metal CsV3Sb5
Phys. Rev. B 107, 174107 (2023)(40) -
K. Ishioka, A. Pashkin, C. Bernhard, H. Petek, X. Yao, J. Demsar
Selective coupling of coherent optical phonons in YBa2Cu3O7−δ with electronic transitions
Phys. Rev. B 107, 184302 (2023)(41) -
L. Kuhrts, L. Helmbrecht, W. L. Noorduin, D. Pohl, X. Sun, A. Palatnik, C. Wetzker, A. Jantschke, M. Schlierf, I. Zlotnikov
Recruiting Unicellular Algae for the Mass Production of Nanostructured Perovskites
Adv. Sci. 10, 2300355 (2023)(42) -
M. Helm, S. Winnerl, A. Pashkin, J. M. Klopf, J.-C. Deinert, S. Kovalev, P. Evtushenko, U. Lehnert, R. Xiang, A. Arnold, A. Wagner, S. M. Schmidt, U. Schramm, T. Cowan, P. Michel
The ELBE infrared and THz facility at Helmholtz-Zentrum Dresden-Rossendorf
Eur. Phys. J. Plus 138, 158 (2023)(43)
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M. Wenzel, A. A. Tsirlin, O. Iakutkina, Q. Yin, H. C. Lei, M. Dressel, E. Uykur
Effect of magnetism and phonons on localized carriers in the ferrimagnetic kagome metals GdMn6Sn6 and TbMn6Sn6
Phys. Rev. B 106, L241108 (2022)(44) -
P. Makushko, T. Kosub, O. V. Pylypovskyi, N. Hedrich, J. Li, A. Pashkin, S. Avdoshenko, R. Hübner, F. Ganss, D. Wolf, A. Lubk, M. O. Liedke, M. Butterling, A. Wagner, K. Wagner, B. J. Shields, P. Lehmann, I. Veremchuk, J. Fassbender, P. Maletinsky, D. Makarov
Flexomagnetism and vertically graded Néel temperature of antiferromagnetic Cr2O3 thin films
Nat. Commun. 13, 6745 (2022)(45) -
I. Ilyakov, A. Ponomaryov, J. M. Klopf, A. Pashkin, J.-C. Deinert, T. V. A. G. de Oliveira, P. Evtushenko, M. Helm, S. Winnerl, and S. Kovalev
Field-resolved THz-pump laser-probe measurements with CEP-unstable THz light sources
Opt. Express 30, 42141 (2022)(46) -
F. Meng, F. Han, U. Kentsch, A. Pashkin, C. Fowley, L. Rebohle, M. D. Thomson, S. Suzuki, M. Asada, and H. G. Roskos
Coherent coupling of metamaterial resonators with dipole transitions of boron acceptors in Si
Opt. Lett. 47, 4969 (2022)(47) -
F. Meng, F. Walla, Q. ul-Islam, A. Pashkin, H. Schneider, C. Jungemann, M. D. Thomson, and H. G. Roskos
Importance of valence-band anharmonicity and carrier distribution for third- and fifth-harmonic generation in Si:B pumped with intense terahertz pulses
Phys. Rev. B 106, 075203 (2022)(48) -
M. Wenzel, B. R. Ortiz, S. D. Wilson, M. Dressel, A. A. Tsirlin, and E. Uykur
Optical study of RbV3Sb5: Multiple density-wave gaps and phonon anomalies
Phys. Rev. B 105, 245123 (2022)(49) -
D. Nuzhnyy, V. Bovtun, E. Buixaderas, J. Petzelt, M. Savinov, M. Kempa, M. Paściak, I. Rafalovskyi, V. Chelod Paingad, P. Kužel, S. Kamba, D. Repček, A. Pashkin, V. A. Trepakov, and Z. Trybuła
Unusual dynamics of the ferroelectric phase transition in K1−xLixTaO3 crystals
Phys. Rev. B 105, 184103 (2022)(50) -
G. Jarc, S. Y. Mathengattil, F. Giusti, M. Barnaba, A. Singh, A. Montanaro, F. Glerean, E. M. Rigoni, S. Dal Zilio, S. Winnerl, D. Fausti
Tunable cryogenic terahertz cavity for strong light–matter coupling in complex materials
Rev. Sci. Instrum. 93, 033102 (2022)(51) -
M. Pinterić, S. Roh, S. Hammer, J. Pflaum, M. Dressel, E. Uykur
Distinction of charge transfer and Frenkel excitons in pentacene traced via infrared spectroscopy
J. Mater. Chem. C 10, 10, 5582 (2022)(52) -
T. Venanzi, M. Selig, A. Pashkin, S. Winnerl, M. Katzer, H. Arora, A. Erbe, A. Patanè, Z. R. Kudrynskyi, Z. D. Kovalyuk, L. Baldassarre, A. Knorr, M. Helm, and H. Schneider
Terahertz control of photoluminescence emission in few-layer InSe
Appl. Phys. Lett. 120, 092104 (2022)(53) -
A. Seidl, R. Anvari, M. M. Dignam, P. Richter, T. Seyller, H. Schneider, M. Helm, and S. Winnerl
Pump-induced terahertz anisotropy in bilayer graphene
Phys. Rev. B 105, 085404 (2022)(54) -
M. Wang, Y. Yu, S. Prucnal, Y. Berencén, M. S. Shaikh, L. Rebohle, M. B. Khan, V. Zviagin, R. Hübner, A. Pashkin, A. Erbe, Y. M. Georgiev, M. Grundmann, M. Helm, R. Kirchner, S. Zhou
Mid- and far-infrared localized surface plasmon resonances in chalcogen-hyperdoped silicon
Nanoscale 14, 2826 (2022)(55)
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L. Balaghi, S. Shan, I. Fotev, F. Moebus, R. Rana, T. Venanzi, R. Hübner, T. Mikolajick, H. Schneider, M. Helm, A. Pashkin, E. Dimakis
High electron mobility in strained GaAs nanowires
Nat. Comm. 12, 6642 (2021)(56) -
C. Wagner, M. Schwuchow, T. Venanzi, H. Schneider, S. Winnerl, A. Thränhardt
Kinetic Monte-Carlo Simulation of Exciton Hopping: Urbach Tails in Gas-Molecule Decorated MoSe2
Phys. Status Solidi B 258, 2100186 (2021)(57) -
I. G. Vasileiadis, L. Lymperakis, A. Adikimenakis, A. Gkotinakos, V. Devulapalli, C. H. Liebscher, M. Androulidaki, R. Hübner, Th. Karakostas, A. Georgakilas, Ph. Komninou, E. Dimakis, G. P. Dimitrakopulos
Substitutional synthesis of sub-nanometer InGaN/GaN quantum wells with high indium content
Sci. Rep. 11, 20606 (2021)(58) -
S. Chae, W. J. Choi, I. Fotev, E. Bittrich, P. Uhlmann, M. Schubert, D. Makarov, J. Wagner, A. Pashkin, A. Fery
Stretchable Thin Film Mechanical-Strain-Gated Switches and Logic Gate Functions Based on a Soft Tunneling Barrier
Adv. Mater. 33, 2104769 (2021)(59) -
T. Venanzi, M. Selig, S. Winnerl, A. Pashkin, A. Knorr, M. Helm, and H. Schneider
Terahertz-Induced Energy Transfer from Hot Carriers to Trions in a MoSe2 Monolayer
ACS Photonics 8, 2931 (2021)(60) -
J. Li, R. Rana, L. G. Zhu, C. L. Liu, H. Schneider, and A. Pashkin
Optical Kerr nonlinearity and multiphoton absorption of DSTMS measured by the Z-scan method
J. Opt. Soc. Am. B 38, 2511 (2021)(61) -
J. Li, R. Rana, L. G. Zhu, C. L. Liu, H. Schneider, and A. Pashkin
Limitation of THz conversion efficiency in DSTMS pumped by intense femtosecond pulses
Opt. Express 29, 22494 (2021)(62) -
M. L. Chin, S. Matschy, F. Stawitzki, J Poojali, H. A. Hafez, D. Turchinovich, S. Winnerl, G. Kumar, R. L. Myers-Ward, M. T. Dejarld, K. M. Daniels, H. D. Drew, T. E. Murphy, and M. Mittendorff
Observation of strong magneto plasmonic nonlinearity in bilayer graphene discs
J. Phys. Photonics 3, 01LT01 (2021)(63) -
K. Liu, J. Li, H. Qi, M. Hambsch, J. Rawle, A. R. Vázquez, A. S. Nia, A. Pashkin, H. Schneider, Th. Heine, M. Helm, S. C. B. Mannsfeld, U. Kaiser, R. Dong, X. Feng
A two-dimensional polyimide-graphene heterostructure with ultra-fast interlayer charge transfer
Angewandte Chemie 60, 13859 (2021)(64) -
T. Nörenberg, L. Wehmeier, D. Lang, S. C. Kehr, and L. M. Eng
Compensating for artifacts in scanning near-field optical microscopy due to electrostatics
APL Photonics 6, 036102 (2021)(65) -
R. Rana, J. M. Klopf, C. Ciano, A. Singh, S. Winnerl, H. Schneider, M. Helm, A. Pashkin
Gold implanted germanium photoswitch for cavity dumping of a free-electron laser
Applied Physics Letters 118, 011107 (2021)(66) -
A. Singh, J. Li, A. Pashkin, R. Rana, S. Winnerl, M. Helm, H. Schneider
High-field THz pulses from GaAs photoconductive emitter for non-linear THz studies
Optics Express 29, 19920 (2021)(67) -
M. Wang, E. García-Hemme, Y. Berencén, R. Hübner, Y. Xie, L. Rebohle, Ch. Xu, H. Schneider, M. Helm, and S. Zhou
Silicon-based intermediate-band infrared photodetector realized by Te hyperdoping
Advanced Optical Materials 2021, 2001546 (2021)(68) -
M. Welsch, A. Singh, S. Winnerl, A. Pashkin, M. Xu, M. Li, M. Helm, and H. Schneider
High-bias-field operation of GaAs photoconductive terahertz emitters
Journal of Infrared, Millimeter and Terahertz Waves 42, 537-546 (2021)(69) -
M. Xu, H. Dong, C. Liu, Y. Wang, L. Hu, C. Lan, W. Luo, H. Schneider
Investigation of an Opposed-Contact GaAs Photoconductive Semiconductor Switch at 1-kHz Excitation
IEEE Trans. Electron Devices 68, 2355 (2021)(70)
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H. Arora, R. Dong, T. Venanzi, J. Zscharschuch, H. Schneider, M. Helm, X. Feng, E. Cánovas, A. Erbe
Demonstration of a Broadband Photodetector Based on a Two‐Dimensional Metal–Organic Framework
Advanced Materials 32, 1907063 (2020)(71) -
C. Ciano, L. Persichetti, M. Montanari, L. Di Gaspare, G. Capellini, L. Baldassarre, M. Ortolani, A. Pashkin, M. Helm, S. Winnerl, M. Virgilio, and M. De Seta
Electron-phonon coupling in n-type Ge two-dimensional systems
Physical Review B 102, 205302 (2020)(72) -
C. Ciano, M. Virgilio, L. Bagolini, L. Baldassarre, A. Rossetti, A. Pashkin, M. Helm, M. Montanari, L. Persichetti, L. Di Gaspare, G. Capellini, D.J. Paul, G. Scalari, J. Faist, M. de Seta, and M. Ortolani
Electron Population Dynamics in Optically Pumped Asymmetric Coupled Ge/SiGe Quantum Wells: Experiments and Models
Photonics 7, 2 (2020)(73) -
C. Ciano, M. Virgilio, L. Bagolini, L. Baldassarre, A. Pashkin, M. Helm, M. Montanari, L. Persichetti, L. Di Gaspare, G. Capellini, D.J. Paul, G. Scalari, J. Faist, M. de Seta, and M. Ortolani
Terahertz absorption-saturation and emission from electron-doped germanium quantum wells
Optics Express 28, 7245 (2020)(74) -
J. Hillbrand, N. Opačak, M. Piccardo, H. Schneider, G. Strasser, F. Capasso, B. Schwarz
Mode-locked short pulses from an 8 μm wavelength semiconductor laser
Nature Communications 11, 5788 (2020)(75) -
L. Hu, M. Xu, X. Li, Y. Wang, Yi Wang, H. Dong, and H. Schneider
Performance investigation of bulk photoconductive semiconductor switch based on reversely biased p+in+ structure
IEEE Transactions on Electron Devices 67, 4963 (2020)(76) -
M. M. Jadidi, M. Kargarian, M. Mittendorff, Y. Aytac, B. Shen, J. C. König-Otto, S. Winnerl, N. Ni, A. L. Gaeta, T. E. Murphy, and H. D. Drew
Nonlinear optical control of chiral charge pumping in a topological Weyl semimetal
Physical Review B 102, 245123 (2020)(77) -
F. Meng, M. D. Thomson, Q. ul-Islam, B. Klug, A. Pashkin, H. Schneider, and H. G. Roskos
Intracavity third-harmonic generation in Si:B pumped by intense terahertz pulses
Physical Review B 102, 075205 (2020)(78) -
M. Mittendorff, S. Winnerl, and T. E. Murphy
2D THz Optoelectronics
Advanced Optical Materials, early view (2020)(79) -
R. Rana, L. Balaghi, I. Fotev, H. Schneider, M. Helm, E. Dimakis, and A. Pashkin
Nonlinear terahertz field-induced charge transport and transferred-electron effect in InGaAs nanowires
Nano Letters 20, 3225–3231 (2020)(80) -
J. Schmidt, S. Winnerl, E. Dimakis, R. Hübner, H. Schneider, and M. Helm
All-THz pump-probe spectroscopy of the intersubband AC-Stark effect in a wide GaAs quantum well
Optics Express 28, 25358-25370 (2020)(81) -
A. Singh, A. Pashkin, S. Winnerl, M. Welsch, C. Beckh, P. Sulzer, A. Leitenstorfer, M. Helm, and H. Schneider
Up to 70 THz bandwidth from implanted Ge photoconductive antenna excited by a fibre laser
Light: Science & Applications 9, 30 (2020)(82) -
A. Singh, M. Welsch, S. Winnerl, M. Helm, H. Schneider
Non-plasmonic improvement in photoconductive THz emitters using nano- and micro-structured electrodes
Optics Express 28, 35490 (2020)(83) -
A. Soltani, F. Kuschewski, M. Bonmann, A. Generalov, A. Vorobiev, F. Ludwig, M. M. Wiecha, D. Cibiraite, F. Walla, S. Winnerl, S. C. Kehr, L. M. Eng, J. Stake, and H. G. Roskos
Direct nanoscopic observation of plasma waves in the channel of a graphene field-effect transistor
Light: Science & Applications 9, 97 (2020)(84) -
T. Venanzi, H. Arora, S. Winnerl, A. Pashkin, A. Patané, Z. D. Kovalyuk, Z. R. Kudrynskyi, K. Watanabe, T. Taniguchi, A. Erbe, M. Helm, and H. Schneider
Photoluminescence dynamics in few-layer InSe
Phys. Rev. Materials 4, 044001 (2020)(85)
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H. Arora, Y. Jung, T. Venanzi, K. Watanabe, T. Taniguchi, René Hübner, H. Schneider, M. Helm, J. C. Hone, and A. Erbe
Effective hexagonal boron nitride passivation of few-layered InSe and GaSe to enhance their electronic and optical properties
ACS Applied Materials & Interfaces 11, 43840 (2019)(86) -
L. Balaghi, G. Bussone, R. Grifone, R. Hübner, J. Grenzer, M. Ghorbani-Asl, A.V. Krasheninnikov, H. Schneider, M. Helm, and E. Dimakis
Widely tunable GaAs band gap via strain engineering in core/shell nanowires
Nature Communications 10, 2793 (2019)(87) -
D. B. But, M. Mittendorff, C. Consejo, F. Teppe, N. N. Mikhailov, S. A. Dvoretskii, C. Faugeras, S. Winnerl, M. Helm, W. Knap, M. Potemski, and M. Orlita
Suppressed Auger scattering and tunable light emission of Landau-quantized massless Kane electrons
Nature Photonics 13, (2019)(88) -
I. Fotev, L. Balaghi, J. Schmidt, H. Schneider, M. Helm, E. Dimakis, and A. Pashkin
Electron dynamics in InxGa1-xAs shells around GaAs nanowires probed by terahertz spectroscopy
Nanotechnology 30, 244004 (2019)(89) -
X.-P. Huang, K. Chen, M.-X. Qi, P.-F. Zhang, Y. Li, S. Winnerl, H. Schneider, Y. Yang, and S. Zhang
Plasmonic Field Guided Patterning of Ordered Colloidal Nanostructures
Nanophotonics 8, 505 (2019)(90) -
M. M. Jadidi, K. M. Daniels, R. L. Myers-Ward, D. K. Gaskill, J. C. König-Otto, S. Winnerl, A. B. Sushkov, H. D. Drew, T. E. Murphy, and M. Mittendorff
Optical Control of Plasmonic Hot Carriers in Graphene
ACS Photonics 6, 302 (2019)(91) -
D. Lang, L. Balaghi, S. Winnerl, H. Schneider, R. Hübner, S. C. Kehr, L. M. Eng, M. Helm, E. Dimakis, and A. Pashkin,
Nonlinear plasmonic response of doped nanowires observed by infrared nanospectroscopy
Nanotechnology 30, 084003 (2019)(92) -
C. Li, V. Gusev, E. Dimakis, T. Dekorsy, and M. Hettich
Broadband Photo-Excited Coherent Acoustic Frequency Combs and Mini-Brillouin-Zone Modes in a MQW-SESAM Structure
Appl. Sci. 9, 289 (2019)(93) -
R. Rana, J. M. Klopf, J. Grenzer, H. Schneider, M. Helm, and A. Pashkin
Nonthermal nature of photoinduced insulator-to-metal transition in NbO2
Phys. Rev. B 99 (Rapid Comm.), 041102(R) (2019)(94) -
A. Singh, M. Welsch, S. Winnerl, M. Helm, and H. Schneider
Improved electrode design for interdigitated large-area photoconductive terahertz emitters
Optics Express 27, 13108 (2019)(95) -
T. Venanzi, H. Arora, A. Erbe, A. Pashkin, S. Winnerl, M. Helm, and H. Schneider
Exciton localization in MoSe2 monolayers induced by adsorbed gas molecules
Appl. Phys. Lett. 114, 172106 (2019)(96) -
L. Wehmeier, D. Lang, Y. Liu, X. Zhang, S. Winnerl, L. M. Eng, and S. C. Kehr
Polarization-dependent near-field phonon nanoscopy of oxides: SrTiO3, LiNbO3, and PbZr0.2Ti0.8O3
Phys. Rev. B 100, 035444 (2019)(97) -
M. Xu, M.X. Li, X.F. Liu, K. Liu, G.H. Qu, V. Wang, L. Hu, and H. Schneider
Transient Characteristics of Interdigitated GaAs Photoconductive Semiconductor Switch at 1-kHz Excitation
IEEE Electron Dev. Lett. 40, 1136 (2019)(98) -
J. Zhu, Y. Xia, G. Li, S. Zhou, S. Wimmer, V. V. Volobuev, G. Springholz, A. Pashkin, M. Helm, and H. Schneider
Band gap, Urbach tail and electron-phonon interactions in topological insulator Bi3Se2 and band insulator (Bi0.89In0.11)2Se3
Appl. Phys. Lett. 114, 162105 (2019)(99)
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J. M. Braun, H. Schneider, M. Helm, R. Mirek, L. A. Boatner, R. E. Marvel, R. F. Haglund Jr., and A. Pashkin
Ultrafast response of photoexcited carriers in VO2 at high-pressure
New J. Phys. 20, 083003 (2018)(100) -
S. Brem, F. Wendler, S. Winnerl, and E. Malic
Electrically pumped graphene-based Landau-level laser
Phys. Rev. Mat. 2, 034002 (2018)(101) -
O. A. Castañeda-Uribe, C. A. Criollo, S. Winnerl, M. Helm, and A. Avila
Comparative study of equivalent circuit models for photoconductive antennas
Optics Express 26, 29017 (2018)(102) -
G. P. Dimitrakopulos, I. G. Vasileiadis, C. Bazioti, J. Smalc-Koziorowska, S. Kret, E. Dimakis, N. Florini, Th. Kehagias, T. Suski, Th. Karakostas, T. D. Moustakas, and Ph. Komninou
Compositional and strain analysis of In(Ga)N/GaN short period superlattices
J. Appl. Phys. 123, 024304 (2018)(103) -
J. Döring, D. Lang, L. Wehmeier, F. Kuschewski, T. Nörenberg, S. C. Kehr, and L. M. Eng
Low-temperature nanospectroscopy of the structural ferroelectric phases in single-crystalline barium titanate
Nanoscale 10, 18074 (2018)(104) -
T. Firkala, F. Kuschewski, T. Nörenberg, J. M. Klopf, A. Pashkin, H. Foerstendorf, M. Rudolph, S. C. Kehr, and L. M. Eng
Near-Field Optical Examination of Potassium n-Butyl Xanthate/Chalcopyrite Flotation Products
Minerals 8, 118 (2018)(105) -
A. Gupta, G. Rana, A. Bhattacharya, A. Singh, R. Jain, R. D. Bapat, S. P. Duttagupta, and S. S. Prabhu
Enhanced optical-to-THz conversion efficiency of photoconductive antenna using dielectric nano-layer encapsulation
APL Photonics 3, 051706 (2018)(106) -
D. Lang, J. Döring, T. Nörenberg, A. Butykai, I. Kezsmarki, H. Schneider, S. Winnerl, M. Helm, S. C. Kehr, and L. M. Eng
Infrared nanoscopy down to liquid helium temperatures
Rev. Sci. Instrum. 89, 033702 (2018)(107) -
A. Lisauskas, K. Ikamas, S. Massabeau, M. Bauer, D. Cibiraité, J. Matukas, J. Mangeney, M. Mittendorff, S. Winnerl, V. Krozer, and H. G. Roskos
Field-effect transistors as electrically controllable nonlinear rectifiers for the characterization of terahertz pulses
APL Photonics 3, 051705 (2018)(108) -
C. Müller-Landau, S. Malzer, H. B. Weber, G. H. Döhler, S. Winnerl, P. Burke, A. C. Gossard and S. Preu
Terahertz generation with ballistic photodiodes under pulsed operation
Semiconductor Science Technol. 33, 114015 (2018) -
D. de Moura Pedroso, J. Schmidt, A. Passaro, M. Helm, and H. Schneider
Fano signatures between intersubband and ponderomotive responses in MQW structures
Optics Express 26, 24054 (2018)(109) -
H. Plank, J. Pernul, S. Gebert, S. N. Danilov, J. König-Otto, S. Winnerl, M. Lanius, J. Kampmeier, G. Mussler, I. Aguilera, D. Grützmacher, and S. D. Ganichev
Infrared/Terahertz Spectra of the Photogalvanic Effect in (Bi,Sb)Te based Three Dimensional Topological Insulators
Phys. Rev. Mat. 2, 024202 (2018)(110) -
S. Regensburger, A. K. Mukherjee, S. Schönhuber, M. A. Kainz, S. Winnerl, J. M. Klopf, H. Lu, A. C. Gossard, K. Unterrainer, and S. Preu
Broadband Terahertz Detection With Zero-Bias Field-Effect Transistors Between 100 GHz and 11.8 THz With a Noise Equivalent Power of 250 pW/√Hz at 0.6 THz
IEEE Trans. on Terahertz Science and Technology 8, 465 (2018)(111) -
A. Singh, A. Pashkin, S. Winnerl, M. Helm, and H. Schneider,
Gapless broadband terahertz emission from a germanium photoconductive emitter
ACS Photonics 5, 2718 (2018)(112) -
T. Tauchnitz, Y. Berdnikov, V. Dubrovskii, H. Schneider, M. Helm, and E. Dimakis,
A simple route to synchronized nucleation of self-catalyzed GaAs nanowires on silicon for sub-Poissonian length distributions
Nanotechnology 28, 504004 (2018)(113) -
M. Wang, Y. Berencén, S. Prucnal, E. García-Hemme, R. Hübner, Y. Yuan, Chi Xu, L. Rebohle, R. Böttger, R. Heller, H. Schneider, W. Skorupa, M. Helm, and S. Zhou,
Extended infrared photoresponse in Te-hyperdoped Si at room temperature
Phys. Rev. Applied 10, 024254 (2018)(114) -
Z.-H. Zhai, H.-F. Zhu, Q. Shi, S.-C. Chen, J. Li, Z.-R. Li, H. Schneider, and L.-G. Zhu
Enhanced photoresponses of an optically driven VO2-based THz wave modulator near percolation threshold
Appl. Phys. Lett. 113, 231104 (2018)(115) -
Z.-H. Zhai, S.-C. Chen, L.-H. Du, S.-C. Zhong, W. Huang, Z.-R. Li, H. Schneider, Q. Shi, and L.-G. Zhu
Giant impact of self-photothermal on light-induced ultrafast insulator-to-metal transition in VO2 nanofilms at terahertz frequency
Optics Express 26, 28051 (2018)(116)
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Y. Berencén, S. Prucnal, F. Liu, I. Skorupa, R. Hübner, L. Rebohle, S. Zhou, H. Schneider, M. Helm, and W. Skorupa
Room-temperature short-wavelength infrared Si photodetector
Scientific Reports 7, 43688 (2017)(117) -
J. Bühler, C. Schmidt, J. Fischer, A. Leitenstorfer, H. Schneider, A. Pashkin, and D. V. Seletskiy
Quantum interference controlled current in InSb injected by intense terahertz radiation
Journal of Infrared, Millimeter and Terahertz Waves 38, 808 (2017)(118) -
N. Deßmann, S. G. Pavlov, V. V. Tsyplenkov, E. E. Orlova, A. Pohl, V. N. Shastin, R. Kh. Zhukavin, S. Winnerl, M. Mittendorff, N. V. Abrosimov, H. Schneider, and H.-W. Hübers
Dynamics of non-equilibrium charge carriers in p-germanium doped by gallium
Phys. Stat. Sol. B (2017)(119) -
V. Jovic, S. Moser, S. Ulstrup, D. Goodacre, E. Dimakis, R. Koch, G. Katsoukis, L. Moreschini, S.-K. Mo, C. Jozwiak, A. Bostwick, E. Rotenberg, Th. D. Moustakas, and K. E. Smith
How Indium Nitride Senses Water
Nano Lett. 17, 7339 (2017)(120) -
J. C. König-Otto, Y. Wang, A. Belyanin, C. Berger, W. A. de Heer, M. Orlita, A. Pashkin, H. Schneider, M. Helm, and S. Winnerl
Four-Wave Mixing in Landau-Quantized Graphene
Nano Lett. 17, 2184 (2017)(121) -
C. Li, N. Krauß, G. Schäfer, L. Ebner, O. Kliebisch, J. Schmidt, S. Winnerl, M. Hettich, and T. Dekorsy
High-speed asynchronous optical sampling based on GHz Yb:KYW oscillators
Optics Express 25, 9204 (2017)(122) -
E. Malic, T. Winzer, F. Wendler, S. Brem, R. Jago, A. Knorr, M. Mittendorff, J. C. König-Otto, T. Plötzing, D. Neumaier, H. Schneider, M. Helm, and S. Winnerl,
Carrier dynamics in graphene: ultrafast many-particle phenomena
Annalen der Physik (Berlin) 529, 1700038 (2017)(123) -
B. Piętka, N. Bobrovska, D. Stephan, M. Teich, M. Król, S. Winnerl, A. Pashkin, R. Mirek, K. Lekenta, F. Morier-Genoud, H. Schneider, B. Deveaud, M. Helm, M. Matuszewski, and J. Szczytko
Doubly dressed bosons: Exciton polaritons in a strong terahertz field
Phys. Rev. Lett. 119, 077403 (2017) -
S. Ruffenach, A. Kadykov, V. V. Rumyantsev, J. Torres, D. Coquillat, D. But, S. S. Krishtopenko, C. Consejo, W. Knap, S. Winnerl, M. Helm, M. A. Fadeev, N. N. Mikhailov, S. A. Dvoretskii, V. I. Gavrilenko, S. V. Morozov, and F. Teppe
HgCdTe-based heterostructures for terahertz photonics
APL Materials 5, 035503 (2017)(124) -
T. Seifert, S. Jaiswal, M. Sajadi, G. Jakob, S. Winnerl, M. Wolf, M. Kläui, and T. Kampfrath
Ultrabroadband single-cycle terahertz pulses with peak fields of 300 kV cm−1 from a metallic spintronic emitter
Appl. Phys. Lett. 110, 252402 (2017)(125) -
T. Tauchnitz, T. Nurmamytov, R. Hübner, M. Engler, S. Facsko, H. Schneider, M. Helm, and E. Dimakis,
Decoupling the two roles of Ga droplets in the self-catalyzed growth of GaAs nanowires on SiOx/Si(111)
ACS Crystal Growth and Design 17, 5276−5282 (2017)(126) -
F. Wendler, M. Mittendorff, J. König-Otto, S. Brem, C. Berger, W. A. de Heer, R. Böttger, H. Schneider, M. Helm, S. Winnerl, and E. Malic
Symmetry-breaking supercollisions in Landau-quantized graphene
Phys. Rev. Lett. 119, 067405 (2017)(127) -
S. Winnerl, M. Mittendorff, J. C. König-Otto, H. Schneider, M. Helm, T. Winzer, A. Knorr, and E. Malic
Ultrafast processes in graphene: from fundamental manybody interactions to device applications
Annalen der Physik (Berlin) 529, 1700022 (2017)(128) -
T. Winzer, M. Mittendorff, S. Winnerl, H. Mittenzwey, R. Jago, M. Helm, E. Malic, and A. Knorr
Unconventional double-bended saturation of carrier occupation in optically excited graphene due to many-particle interactions
Nature Comms. 8, 15042 (2017)(129) -
R. Kh. Zhukavin, K. A. Kovalevskii, S. M. Sergeev, Yu. Yu. Choporova, V. V. Gerasimov, V. V. Tsyplenkov, B. A. Knyazev, N. V. Abrosimov, S. G. Pavlov, V. N. Shastin, H. Schneider, N. Deßmann, O. A. Shevchenko, N. A. Vinokurov, G. N. Kulipanov, and H.-W. Hübers
Low-temperature intracenter relaxation times of shallow donors in germanium
JETP Letters 106, 571 (2017)(130)
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L. Balaghi, T. Tauchnitz, R. Hübner, L. Bischoff, H. Schneider, M. Helm, and E. Dimakis
Droplet-confined alternate pulsed epitaxy of GaAs nanowires on Si substrates down to CMOS-compatible temperatures
Nano Lett. 16, 4032 (2016)(131) -
P. Corfdir, R. B. Lewis, O. Marquardt, H. Küpers, J. Grandal, E. Dimakis, A. Trampert, L. Geelhaar, O. Brandt, and R. T. Phillips
Exciton recombination at crystal-phase quantum rings in GaAs/InxGa1-xAs core/multishell nanowires
Appl. Phys. Lett. 109, 082107 (2016)(132) -
F. Eßer, S. Winnerl, A. Patanè, M. Helm, and H. Schneider
Excitonic mobility edge and ultra-short photoluminescence decay time in n-type GaAsN
Appl. Phys. Lett. 109, 182113 (2016)(133) -
B. Green, S. Kovalev, V. Asgekar, G. Geloni, U. Lehnert, T. Golz, M. Kuntzsch, C. Bauer, J. Hauser, J. Voigtlaender, B. Wustmann, I. Koesterke, M. Schwarz, M. Freitag, A. Arnold, J. Teichert, M. Justus, W. Seidel, C. Ilgner, N. Awari, D. Nicoletti, S. Kaiser, Y. Laplace, S. Rajasekaran, L. Zhang, S. Winnerl, H. Schneider, G. Schay, I. Lorincz, A. A. Rauscher, I. Radu, S. Mährlein, T. H. Kim, J. S. Lee, T. Kampfrath, S. Wall, J. Heberle, A. Malnasi-Csizmadia, A. Steiger, A. S. Müller, M. Helm, U. Schramm, T. Cowan, P. Michel, A. Cavalleri, A. S. Fisher, N. Stojanovic, and M. Gensch
High-field high-repetition-rate sources for the coherent THz control of matter
Scientific Reports 6, 22256 (2016)(134) -
M. M. Jadidi, J. C. König-Otto, S. Winnerl , A. B. Sushkov, H. D. Drew, T. E. Murphy, M. Mittendorff
Nonlinear Terahertz Absorption of Graphene Plasmons
Nano Lett. 16 (4), 2734 (2016)(135) -
K. J. Kaltenecker, J. C. Otto, M. Mittendorff, S. Winnerl, H. Schneider, M. Helm, H.P. Helm, M. Walther, and B. M. Fischer
Gouy phase shift of a radially polarized Gaussian beam
Optica 3, 35 (2016)(136) -
S. C. Kehr, R. G. P. McQuaid, L. Ortmann, T. Kämpfe, F. Kuschewski, D. Lang, J. Döring, J. M. Gregg, and L. M. Eng
A local superlens
ACS Photonics 3, 20(2016)(137) -
F. Kuschewski, H.-G. von Ribbeck, J. Döring, S. Winnerl, L. M. Eng and S. C. Kehr
Narrow-band near-field nanoscopy in the spectral range from 1.3 to 8.5 THz
Appl. Phys. Lett.108, 113102 (2016)(138) -
J. C. König-Otto, M. Mittendorff, T. Winzer, F. Kadi, E. Malic, A. Knorr, C. Berger, W. A. de Heer, A. Pashkin, H. Schneider, M. Helm, and S. Winnerl
Slow noncollinear Coulomb scattering in the vicinity of the Dirac point in graphene
Phys. Rev. Lett. 117, 087401 (2016)(139) -
S. G. Pavlov, N. Deßmann, A. Pohl, V. B. Shuman, L. М. Portsel, А. N. Lodygin, Yu. A. Astrov, S. Winnerl, H. Schneider, N. Stavrias, A. F. G. van der Meer, V. V. Tsyplenkov, K. A. Kovalesky, R. Kh. Zhukavin, V. N. Shastin, P. M. Haas, N. V. Abrosimov, and H.-W. Hübers
Dynamics of nonequilibrium electrons on neutral center states of interstitial magnesium donors in silicon
Phys. Rev. B 94, 075208 (2016)(140) -
S. Prucnal, F. Liu, M. Voelskow, L. Vines, L. Rebohle, D. Lang, Y. Berencén, S. Andric, R. Boettger, M. Helm, S. Zhou, and W. Skorupa
Ultra-doped n-type germanium thin films for sensing in the mid-infrared
Scientific Reports 6, 27643 (2017)(141) -
D. Sabbagh, J. Schmidt, S. Winnerl, M. Helm, L. Di Gaspare, M. De Seta, M. Virgilio, and M. Ortolani
Electron dynamics in silicon-germanium terahertz quantum fountain structures
ACS Photonics 3, 403 (2016)(142) -
C. Schmidt, J. Bühler, B. Mayer, A. Pashkin, A. Leitenstorfer, and D. V. Seletskiy
Controlled polar asymmetry of few-cycle and intense mid-infrared pulses
Journal of Optics 18, 05LT01 (2016)(143) -
A. Singh, S. Winnerl, J. C. König-Otto, D. R. Stephan, M. Helm, H. Schneider
Plasmonic efficiency enhancement at the anode of strip line photoconductive terahertz emitters
Opt. Express 24, 22628 – 22634 (2016)(144) -
D. Stephan, J. Bhattacharyya, Y.H. Huo, O.G. Schmidt, A. Rastelli, M. Helm, and H. Schneider
Inter-sublevel dynamics in single InAs/GaAs quantum dots induced by strong terahertz excitation
Appl. Phys. Lett. 108, 082107 (2016)(145) -
R. J. Suess, S. Winnerl, H. Schneider, M. Helm, C. Berger, W. A. de Heer, T. E. Murphy, and M. Mittendorff,
Role of transient reflection in graphene nonlinear infrared optics
ACS Photonics 3, 1069 (2016)(146) -
J. Zhu, F. Liu, S. Zhou, C. Franke, S. Wimmer, V. V. Volobuev, G. Springholz, A. Pashkin, H. Schneider, and M. Helm
Lattice vibrations and electrical transport in (Bi1-xInx)2Se3 films
Appl. Phys. Lett. 109, 202103 (2016)(147)
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G. Bussone, H. Schäfer-Eberwein, E. Dimakis, A. Biermanns, D. Carbone, A. Tahraoui, L. Geelhaar, P. Haring Bolívar, T. U. Schülli, and U. Pietsch
Correlation of Electrical and Structural Properties of Single As-Grown GaAs Nanowires on Si (111) Substrates
Nano Lett. 15, 981 (2015)(148) -
N. Deßmann, S. G. Pavlov, A. Pohl, N. V. Abrosimov, S. Winnerl, M. Mittendorff, R. Kh. Zhukavin, V. V. Tsyplenkov, D. V. Shengurov, V. N. Shastin, and H.-W. Hübers
Lifetime-limited, subnanosecond terahertz germanium photoconductive detectors
Appl. Phys. Lett. 106, 171109 (2015)(149) -
F. Eßer, O. Drachenko, A. Patanè, M. Ozerov, S. Winnerl, H. Schneider, and M. Helm
Direct determination of the electron effective mass of GaAsN by terahertz cyclotron resonance spectroscopy
Appl. Phys. Lett. 107, 062103 (2015)(150) -
M. Fehrenbacher, S. Winnerl, H. Schneider, J. Döring, S. C. Kehr, L. M. Eng, Y. Huo, O. G. Schmidt, K. Yao, Y. Liu, and M. Helm
Plasmonic Superlensing in Doped GaAs
Nano Lett. 15, 1057 (2015)(151) -
C. Franke, M. Walther, M. Helm, H. Schneider
Two-photon quantum well infrared photodetectors below 6 THz
Infrared Physics Technol. 70, 30 (2015)(152) -
A. Hassdenteufel, J. Schmidt, C. Schubert, B. Hebler, M. Helm, M. Albrecht, and R. Bratschitsch
Low-remanence criterion for helicity-dependent all-optical magnetic switching in ferrimagnets
Phys. Rev. B 91, 104431 (2015)(153) -
J. Y. Jia, T. M. Wang, Y. H. Zhang, W. Z. Shen, and H. Schneider
High-Temperature Photon-Noise-Limited Performance Terahertz Quantum-Well Photodetectors
IEEE Trans. Terahertz Science Technol. 5, 715 (2015)(154) -
N. Krauß, M. Haas, L. Niemeyer, S. Winnerl, M. Helm, and T. Dekorsy
Terahertz emission based on large-area photoconductive emitters illuminated via beam interference
Electronics Lett. 51, 1357 (2015)(155) -
M. Köhl, P. Schroth, A. A. Minkevich, J.-W. Hornung, E. Dimakis, C. Somaschini, L. Geelhaar, T. Aschenbrenner, S. Lazarev, D. Grigoriev, U. Pietsch and T. Baumbach
Polytypism in GaAs nanowires: determination of the interplanar spacing of wurtzite GaAs by X-ray diffraction
J. Synchrotron Rad. 22, 67 (2015)(156) -
B. Mayer, C. Schmidt, A. Grupp, J. Bühler, J. Oelmann, R. E. Marvel, R. F. Haglund Jr., T. Oka, D. Brida, A. Leitenstorfer, and A. Pashkin
Tunneling breakdown of a strongly correlated insulating state in VO2 induced by intense multiterahertz excitation
Phys. Rev. B 91, 235113 (2015)(157) -
M. Mittendorff, J. Kamann, J. Eroms, D. Weiss, C. Drexler, S. D. Ganichev, J. Kerbusch, A. Erbe, R. J. Suess, T. E. Murphy, S. Chatterjee, K. Kolata, J. Ohser, J. C. König-Otto, H. Schneider, M. Helm, and S. Winnerl
Universal ultrafast detector for short optical pulses based on graphene
Optics Express 23, 28728 (2015)(158) -
M. Mittendorff, F. Wendler, E. Malic, A. Knorr, M. Orlita, M. Potemski, C. Berger, W. A. de Heer, H. Schneider, M. Helm, and S. Winnerl
Carrier dynamics in Landau-quantized graphene featuring strong Auger scattering
Nature Physics 11, 75 (2015)(159) -
S. Preu, M. Mittendorff, S. Winnerl, O. Cojocari, A. Penirschke
THz Autocorrelators for ps Pulse Characterization Based on Schottky Diodes and Rectifying Field-Effect Transistors
IEEE Trans. Terahertz Science Technol. 5, 922 (2015)(160) -
S. Regensburger, M. Mittendorff, S. Winnerl, H. Lu, A. C. Gossard, S. Preu
Broadband THz detection from 0.1 to 22 THz with large area field-effect transistors
Optics Express 23, 20732 (2015)(161) -
J. Schmidt, S. Winnerl, W. Seidel, C. Bauer, M. Gensch, H. Schneider, and M. Helm
Single-pulse picking at kHz repetition rates using a Ge plasma switch at the free-electron laser FELBE
Rev. Sci. Instrum. 86, 063103 (2015)(162) -
Ph. Schroth, M. Köhl, J.-W. Hornung, E. Dimakis, C. Somaschini, L. Geelhaar, A. Biermanns, S. Bauer, S. Lazarev, U. Pietsch, and T. Baumbach
Evolution of Polytypism in GaAs Nanowires during Growth Revealed by Time-Resolved in situ x-ray Diffraction
Phys. Rev. Lett. 114, 055504 (2015)(163) -
C. Sorger, S. Preu, J. Schmidt, S. Winnerl, Y. V. Bludov, N. M. R. Peres, M. I. Vasilevskiy, and H. B. Weber
Terahertz response of patterned epitaxial graphene
New J. Phys. 17, 053045 (2015)(164)
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J. Bhattacharyya, S. Zybell, F. Eßer, M. Helm, H. Schneider, L. Schneebeli, C. N. Böttge, B. Breddermann, M. Kira, S. W. Koch, A. M. Andrews, and G. Strasser
Magnetic control of Coulomb scattering and terahertz transitions among excitons
Phys. Rev. B 89, 125313 (2014)(165) -
A. Biermanns, E. Dimakis, A. Davydok, T. Sasaki, L. Geelhaar, M. Takahasi⊥, and U. Pietsch
Role of Liquid Indium in the Structural Purity of Wurtzite InAs Nanowires That Grow on Si(111)
Nano Lett. 14, 6878 (2014)(166) -
G. Bussone, E. Dimakis, R. Grifone, A. Biermanns, A. Tahraoui, D. Carbone, L. Geelhaar, T. U. Schülli, and U. Pietsch
Impact of strain induced by polymer curing in benzocyclobutene embedded semiconductor nanostructures
Phys. Stat. Sol. (RRL) 8, 1007 (2014)(167) -
D. B. But, C. Drexler, M. V. Sakhno, N. Dyakonova, O. Drachenko, F. F. Sizov, A. Gutin, S. D. Ganichev and W. Knap
Nonlinear photoresponse of field effect transistors terahertz detectors at high irradiation intensities
J. Appl. Phys. 115, 164514 (2014)(168) -
N. Deßmann, S. G. Pavlov, V. N. Shastin, R. Kh. Zhukavin, V. V. Tsyplenkov, S. Winnerl, M. Mittendorff, N. V. Abrosimov, H. Riemann, and H.-W. Hübers
Time-resolved electronic capture in n-type germanium doped with antimony
Phys. Rev. B 89, 035205 (2014)(169) -
J. Döring, H.-G. von Ribbeck, M. Fehrenbacher, S. C. Kehr, and L. M. Eng
Near-field resonance shifts of ferroelectric barium titanate domains upon lowtemperature phase transition
Appl. Phys. Lett. 105, 053109 (2014)(170) -
M. R. Hao, S. Zhang, Y. H. Zhang, W. Z. Shen, H. Schneider, and H. C. Liu
Re-examining the Doping Effect on the Performance of Quantum Well Infrared Photodetectors
IEEE J. Quantum Electrons Letters 50, 3 (2014)(171) -
M. R. Hao, S. Zhang, Y. H. Zhang, W. Z. Shen, H. Schneider, and H. C. Liu
Near Room Temperature Photon Noise Limited Quantum Well Infrared Photodetector
Laser Photonics Rev. 8, 297 (2014)(172) -
J. Y. Jia, J. H. Gao, M. R. Hao, T. M. Wang, W. Z. Shen, Y. H. Zhang, J. C. Cao, X. G. Guo, and H. Schneider
Dark current mechanism of terahertz quantum-well photodetectors
J. Appl. Phys. 116, 154501 (2014)(173) -
A. Hassdenteufel, C. Schubert, J. Schmidt, P. Richter, D. R. T. Zahn, G. Salvan, M. Helm, R. Bratschitsch and M. Albrecht
Dependence of all-optical magnetic switching on the sublattice magnetization orientation in Tb-Fe thin films
Appl. Phys. Lett. 105, 112403 (2014)(174) -
F. Kadi, T. Winzer, E. Malic, A. Knorr, F. Göttfert, M. Mittendorff, S. Winnerl, and M. Helm
Microscopic Description of intraband absorption in graphene: The occurrence of transient negative differential transmission
Phys. Rev. Lett. 113, 035502 (2014)(175) -
M. Mittendorff, T. Winzer, E. Malic, A. Knorr, C. Berger, W. A. de Heer, H. Schneider, M. Helm, and S. Winnerl
Anisotropy of excitation and relaxation of photogenerated charge carriers in graphene
Nano Lett. 8, 1504 (2014)(176) -
M. Mittendorff, M. Orlita, M. Potemski, C. Berger, W. A. de Heer, H. Schneider, M. Helm, and S. Winnerl
Intraband carrier dynamics in Landau-quantized multilayer epitaxial graphene
New J. Phys. 16, 123021 (2014)(177) -
W. Pan, E. Dimakis, G. T. Wang, T. D. Moustakas, and D. C. Tsui
Two-dimensional electron gas in monolayer InN quantum wells
Appl. Phys. Lett. 105, 213503 (2014)(178) -
S. G. Pavlov, N. Deßmann, V. N. Shastin, R. Kh. Zhukavin, B. Redlich, A. F. G. van der Meer, M. Mittendorff, S. Winnerl, N. V. Abrosimov, H. Riemann, and H.-W. Hübers
Terahertz Stimulated Emission from Silicon Doped by Hydrogenlike Acceptors
Phys. Rev. X 4, 021009 (2014)(179) -
C. Schubert, A. Hassdenteufel, P. Matthes, J. Schmidt, M. Helm, R. Bratschitsch and M. Albrecht
All-optical helicity dependent magnetic switching in an artificial zero moment magnet
Appl. Phys. Lett. 104, 082406 (2014)(180) -
M. Teich, M. Wagner, D. Stehr, H. Schneider, M. Helm, C. N. Böttge, A. C. Klettke, S. Chatterjee, M. Kira, S. W. Koch, G. Khitrova, and H. M. Gibbs
Systematic investigation of THz-induced excitonic Rabi splitting
Phys. Rev. B 89, 115311 (2014)(181) -
M. Virgilio, M. Ortolani, M. Teich, S. Winnerl, M. Helm, D. Sabbagh, G. Capellini, and M. De Seta
Combined effect of electron and lattice temperatures on the long intersubband relaxation times of Ge/SixGe1−x quantum wells
Phys. Rev. B 89, 045311 (2014)(182) -
S. Zybell, J. Bhattacharyya, S. Winnerl, F. Eßer, M. Helm, H. Schneider, L. Schneebeli, C. N. Böttge, M. Kira, S. W. Koch, A. M. Andrews, and G. Strasser
Characterizing intra-exciton Coulomb scattering in terahertz excitations
Appl. Phys. Lett. 105, 201109 (2014)(183)
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M. Beck, I. Rousseau, M. Klammer, P. Leiderer, M. Mittendorff, S. Winnerl, M. Helm, G. N. Gol’tsman, and J. Demsar
Transient Increase of the Energy Gap of Superconducting NbN Thin Films Excited by Resonant Narrow-Band Terahertz Pulses
Phys. Rev. Lett. 110, 267003 (2013)(184) -
C. N. Böttge, B. Breddermann, L. Schneebeli, M. Kira, S. W. Koch, J. Bhattacharyya, H. Schneider, and M. Helm
Transient Increase of the Terahertz-induced effects on excitons in magnetic field
Phys. Stat. Sol. C, doi: 10.1002/pssc.201200702 (2013)(185) -
A. Dienst, E. Casandruc, D. Fausti, L. Zhang, M. Eckstein, M. Hoffmann, V. Khanna, N. Dean, M. Gensch, S. Winnerl, W. Seidel, S. Pyon, T. Takayama, H. Takagi, and A. Cavalleri
Optical excitation of Josephson plasma solitons in a cuprate superconductor
Nature Materials 12, 535–541 (2013)(186) -
J. DiMaria, E. Dimakis, Th. D. Moustakas, and R. Paiella
Plasmonic off-axis unidirectional beaming of quantum-well luminescence
Appl. Phys. Lett. 103, 251108 (2013)(187) -
O. Drachenko, D. Kozlov, A. V. Ikonnikov, K. E. Spirin, V. Gavrilenko, H. Schneider, M. Helm, and J.Wosnitza
Long spin relaxation time of holes in InGaAs/GaAs quantum wells probed by cyclotron resonance spectroscopy
Phys. Rev. B 87, 075315 (2013)(188) -
A. Hassdenteufel, B. Hebler, C. Schubert, A. Liebig, M. Teich, M. Helm, M. Aeschlimann, M. Albrecht, and R. Bratschitsch
Thermally Assisted All-Optical Helicity Dependent Magnetic Switching in Amorphous Fe100–xTbx Alloy Films
Adv. Mat. 25, 3122-3128 (2013)(189) -
M. Mittendorff, M. Xu, R. J. B. Dietz, H. Künzel, B. Sartorius, H. Schneider, M. Helm, and S. Winnerl
Large area photoconductive THz emitter for 1.55 µm excitation based on an InGaAs heterostructure
Nanotechnology 24, 214007 (2013)(190) -
M. Mittendorff, S. Winnerl, J. Kamann, J. Eroms, D. Weiss, H. Schneider, and M. Helm
Ultrafast graphene-based broadband THz detector
Appl. Phys. Lett. 103, 021113 (2013)(191) -
S. Preu, M. Mittendorff, S. Winnerl, H. Lu, A. C. Gossard, and H. B. Weber
Ultra-fast transistor-based detectors for precise timing of near infrared and THz signals
Optics Express 21, 17941(2013)(192) -
W. D. Rice, J. Kono, S. Zybell, S. Winnerl, J. Bhattacharyya, H. Schneider, M. Helm, B. Ewers, A. Chernikov, M. Koch, S. Chatterjee, G. Khitrova, H. M. Gibbs, L. Schneebeli, B. Breddermann, M. Kira, and S. W. Koch
Observation of forbidden exciton transitions mediated by Coulomb interactions in photoexcited semiconductor quantum wells
Phys. Rev. Lett. 110, 137404 (2013)(193) -
M. Teich, S. Winnerl, D.R. Stephan, H. Schneider, M. Helm, and L.R. Wilson
Intersublevel dephasing in InAs/GaAs quantum dots below the Reststrahlen band
Appl. Phys. Lett. 103, 252110 (2013)(194) -
M. Teich, M. Wagner, H. Schneider, and M. Helm
Semiconductor quantum well excitons in strong, narrowband terahertz fields
New J. Phys. 15, 065007 (2013)(195) -
S. Winnerl, F. Göttfert, M. Mittendorff, H. Schneider, M. Helm, T. Winzer, E. Malic, A. Knorr, M. Orlita, M. Potemski, M. Sprinkle, C. Berger, and W. A. de Heer
Time-resolved spectroscopy on epitaxial graphene in the infrared spectral range: relaxation dynamics and saturation behavior
J. Phys.: Condens. Matter 25, 054202 (2013)(196) -
M. Xu, M. Mittendorff, R. J. B. Dietz, H. Künzel, B. Sartorius, T. Göbel, H. Schneider, M. Helm, and S. Winnerl
THz generation and detection with InGaAs-based large-area photoconductive devices excited at 1.55 µm
Appl. Phys. Lett. 103, 251114 (2013)(197)
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M. Baudisch, M. Wagner, H. Schneider, D. Stehr, M. Helm, P. Atkinson, Y. Huo, A. Rastelli, O. G. Schmidt, A. M. Andrews, and G. Strasser
Fano effect due to ponderomotive coupling in intersubband response of semiconductor quantum wells
Phys. Rev. B 86, 075305 (2012)(198) -
J. Bhattacharyya, S. Zybell, S. Winnerl, M. Helm, M. Hopkinson, L. R. Wilson, and H. Schneider
In-plane interdot carrier transfer in InAs/GaAs quantum dots
Appl. Phys. Lett. 100, 051109 (2012)(199) -
S. Boppel, A. Lisauskas, M. Mundt, D. Seliuta, L. Minkevicius, I. Kasalynas, G. Valusis, M. Mittendorff, S. Winnerl, V. Krozer, and H. G. Roskos
CMOS integrated antenna-coupled field-effect transistors for the detection of radiation from 0.2 to 4.3 THz
IEEE Trans. Microwave Theory and Techniques 60, 3834 (2012)(200) -
A. Delga, M. Carras, V. Trinité, V. Guériaux, L. Doyennette, A. Nedelcu, H. Schneider, and V. Berger
Master equation approach of classical noise in intersubband detectors
Phys. Rev. B 85, 245414 (2012)(201) -
O. Drachenko and M. Helm
Cyclotron resonance spectroscopy
Springer Series in Materials Science Vol. 150, pp. 283-307 (2012)(202) -
R. Jacob, S. Winnerl, M. Fehrenbacher, J. Bhattacharyya, H. Schneider, M. T. Wenzel, H.-G. von Ribbeck, L. M. Eng, P. Atkinson, A. Rastelli, O. G. Schmidt, and M. Helm
Intersublevel spectroscopy on single InAs-quantum dots by terahertz near-field microscopy
Nano Letters 12, 4336-4340 (2012)(203) -
C. Kaya, C. Schneider, A. Al-Shemmary, W. Seidel, M. Kuntzsch, J. Bhattacharyya, M. Mittendorff, P. Evtushenko, S. Winnerl, G. Staats, M. Helm, N. Stojanovic, P. Michel, and M. Gensch
Phase sensitive monitoring of electron bunch form and arrival time in superconducting linear accelerators
Appl. Phys. Lett. 100, 141103 (2012)(204) -
C.M. Morris, D. Stehr, H.C. Kim, T.A. Truong, C. Pryor, P.M. Petroff, and M.S. Sherwin
Terahertz Ionization of Highly-Charged Quantum Posts in a Perforated Electron Gas
Nano Letters 12, 1115-1120 (2012)(205) -
M. Wagner, M. Teich, M. Helm, and D. Stehr
Temperature dependence of the intraexcitonic AC Stark effect in semiconductor quantum wells
Appl. Phys. Lett. 100, 152101 (2012)(206) -
S. Winnerl, R. Hubrich, M. Mittendorff, H. Schneider, and M. Helm
Universal phase relation between longitudinal and transverse fields observed in focused terahertz beams
New J. Phys. 14, 103049 (2012)(207) -
S. Winnerl
Scalable Microstructured Photoconductive Terahertz Emitters
Journal of Infrared, Millimeter, and Terahertz Waves 33, 431 - 454 (2012)(208) -
T. Winzer, A. Knorr, M. Mittendorff, S. Winnerl, D. Sun, T. B. Norris, M. Helm, and E. Malic
Absorption saturation in optically pumped graphene
Appl. Phys. Lett. 101, 221115 (2012)(209)
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C.Balocco, S. R. Kasjoo, X. F. Lu, L. Q. Zhang, Y. Alimi, S. Winnerl, and A. M. Song
Room-temperature operation of a unipolar nanodiode at terahertz frequencies
Appl. Phys. Lett. 98, 223501 (2011)(210) -
J. Bhattacharyya, M. Wagner, S. Zybell, S. Winnerl, D. Stehr, M. Helm, and H. Schneider
Simultaneous time and wavelength resolved spectroscopy under two-color near infrared and terahertz excitation
Rev. Sci. Instrum. 82, 103107 (2011)(211) -
O. Drachenko, A. Patanè, N.V. Kozlova, Q.D. Zhuang, A. Krier, L. Eaves, and M. Helm
Cyclotron resonance mass and Fermi energy pinning in the In(AsN) alloy
Appl. Phys. Lett. 98, 103107 (2011)(212) -
O. Drachenko, H. Schneider, M. Helm, D. Kozlov, V. Gavrilenko, J. Wosnitza, and J. Leotin
Modification to the central-cell correction of germanium acceptors
Phys. Rev. B 84, 245207 (2011)(213) -
O. Drachenko, S. Winnerl, H. Schneider, M. Helm, J. Wosnitza, and J. Leotin
Compact magnetospectrometer for pulsed magnets based on infrared quantum cascade lasers
Rev. Sci. Instrum. 82, 033108 (2011);doi:10.1063/1.3556441(214) -
M. Giehler, M. Wienold, L. Schrottke, R. Hey, H. T. Grahn, S. G. Pavlov, H.-W. Hübers, S. Winnerl, and H. Schneider
Mid-infrared pump-related electric-field domains in GaAs/(Al,Ga)As quantum-cascade structures for terahertz lasing without population inversion
J. Appl. Phys. 110, 103104 (2011)(215) -
A. V. Ikonnikov, M. S. Zholudev, K. E. Spirin, A. A. Lastovkin, K. V. Maremyanin, V. Ya. Aleshkin, V. I. Gavrilenko, O. Drachenko, M. Helm, J. Wosnitza, M. Goiran, N. N. Mikhailov, S. A. Dvoretskii, F. Teppe, N. Diakonova, C. Consejo, B. Chenaud, and W. Knap
Cyclotron resonance and interband optical transitions in HgTe/CdTe(0 1 3) quantum well heterostructures
Semicond. Sci. Technol. 26, 125011 (2011)(216) -
S. C. Kehr, Y. M. Liu, L. W. Martin, P. Yu, M. Gajak, S.-Y. Yang, C.-H. Yang, M. T. Wenzel, R. Jacob, H.-G. von Ribbeck, M. Helm, X. Zhang, L. M. Eng, and R. Ramesh
Near-field examination of perovskite-based superlenses and superlense-enhanced probe-object coupling
Nature Communications 2, 249 (2011)(217) -
S.C. Kehr, Pu Yu, Y.M. Liu, M. Parzefall, A.I. Khan, R. Jacob, M.T. Wenzel, H.-G. Ribbeck, M. Helm, X. Zhang, L.M. Eng and R. Ramesh
Microspectroscopy on perovskite-based superlenses
Optical Materials Express 1, 1051 (2011)(218) -
T. A. Komissarova, V. N. Jmerik, S. V. Ivanov, O. Drachenko, X. Wang, and A. Yoshikawa
Identification of the main contributions to the conductivity of epitaxial InN
Phys. Rev. B 84, 035205 (2011)(219) -
J. Krause, M. Wagner, S. Winnerl, M. Helm, and D. Stehr
Tunable narrowband THz pulse generation in scalable large area photoconductive antennas
Opt. Express 19, 19114-19121 (2011)(220) -
M. Ortolani, D. Stehr, M. Wagner, M. Helm, G. Pizzi, M. Virgilio, G. Grosso, G. Capellini, and M. De Seta
Long intersubband relaxation times in n-type germanium quantum wells
Appl. Phys. Lett. 99, 201101 (2011)(221) -
M. Wagner, M. Helm, M. S. Sherwin, and D. Stehr
Coherent control of a THz intersubband polarization in a voltage controlled single quantum well
Appl. Phys. Lett. 99, 131109 (2011)(222) -
M. Wagner, H. Schneider, D. Stehr, S. Winnerl, A. M. Andrews, S. Schartner, G. Strasser and M. Helm
Terahertz nonlinear optics using intra-excitonic quantum-well transitions: Sideband generation and AC Stark splitting
Phys. Stat. Sol. (b) 248, 859 (2011)(223) -
S. Winnerl, M. Orlita, P. Plochocka, P. Kossacki, M. Potemski, T. Winzer, E. Malic, A. Knorr, M. Sprinkle, C. Berger, W.A. de Heer, H. Schneider, and M. Helm
Carrier dynamics in epitaxial graphene close to the Dirac point
Phys. Rev. Lett. 107, 237401 (2011)(224) -
S. Winnerl, D. Stehr, M. Wagner, H. Schneider, M. Helm, W. Seidel, P. Michel, E. A. Zibik, B. A. Carpenter, N. E. Porter, M. S. Skolnick, L. R. Wilson, T. Grange, R. Ferreira, G. Bastard, M. Orlita, P. Plochocka, P. Kossacki, M. Potemski, M. Sprinkle, C. Berger, and W. A. de Heer
Time resolved spectroscopy on quantum dots and graphene at the FELBE free-electron laser
Proc. SPIE 7937, 793708 (2011);doi:10.1117/12.873702(225) -
B. Zaks, D. Stehr, T.-A. Truong, P. M. Petroff, S. Hughes, and M. S. Sherwin
THz-driven quantum wells: Coulomb interactions and Stark shifts in the ultrastrong coupling regime
New J. Phys. 13, 083009 (2011)(226) -
S. Zybell, H. Schneider, S. Winnerl, M. Wagner, K. Köhler, M. Helm
Photoluminescence dynamics in GaAs/AlGaAs quantum wells under pulsed intersubband excitation
Appl. Phys. Lett. 99, 041103 (2011)(227)
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M. Beck, H. Schäfer, G. Klatt, J. Demsar, S. Winnerl, M. Helm, and T. Dekorsy
Impulsive terahertz radiation with high electric fields from an amplifier-driven large-area photoconductive antenna
Opt. Express 18, 9251-9257 (2010)(228) -
J. Bhattacharyya, M. Wagner, M. Helm, M. Hopkinson, L. R. Wilson, and H. Schneider
Terahertz activated luminescence of trapped carriers in InGaAs/GaAs quantum dots
Appl. Phys. Lett. 97, 031101 (2010)(229) -
R. Jacob, S. Winnerl, H. Schneider, M. Helm, M. T. Wenzel, H.-G. v. Ribbeck, L. M. Eng, and S. Kehr
Quantitative determination of the charge carrier concentration of sub-surface implanted silicon by IR-near-field spectroscopy
Opt. Express 18, 26206-26213 (2010)(230) -
O.A. Mironov, M. Goiran, J. Galibert, D.V. Kozlov, A.V. Ikonnikov, K.E. Spirin, V.I. Gavrilenko, G. Isella, M. Kummer, H. von Känel, O. Drachenko, M. Helm, J. Wosnitza, R.J.H. Morris, and D.R. Leadley
Cyclotron Resonance of Extremely Conductive 2D Holes in High Ge Content Strained Heterostructures
J. Low Temp. Phys. 159, 216 (2010)(231) -
N. Miura, N.V. Kozlova, K. Dörr, J. Freudenberger, L. Schultz, O. Drachenko, K. Sawano, and Y. Shiraki
Quantum Transport and Cyclotron Resonance Study of Ge/SiGe Quantum Wells in High Magnetic Fields
J. Low Temp. Phys. 159, 222 (2010)(232) -
F. Peter, S. Winnerl, H. Schneider, and M. Helm
Excitation wavelength dependence of phase matched terahertz emission from a GaAs slab
Opt. Express 18, 19574–19580 (2010)(233) -
I. C. Sandall, N. E. Porter, L. R. Wilson, M. Wagner, H. Schneider, S. Winnerl, and M. Helm
Terahertz optical sideband emission in self-assembled quantum dots
Appl. Phys. Lett. 96, 201105 (2010)(234) -
M. Wagner, H. Schneider, D. Stehr, S. Winnerl, A. M. Andrews, S. Schartner, G. Strasser, and M. Helm
Observation of the intraexciton Autler-Townes effect in GaAs/AlGaAs semiconductor quantum wells
Phys. Rev. Lett. 105, 167401 (2010)(235)
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O. Drachenko, D. V. Kozlov, V. Ya. Aleshkin, V. I. Gavrilenko, K. V. Maremyanin, A. V. Ikonnikov, B. N. Zvonkov, M. Goiran, J. Leotin, G. Fasching, S. Winnerl, H. Schneider, J. Wosnitza, and M. Helm
High-field splitting of the cyclotron resonance absorption in strained p-InGaAs/GaAs quantum wells
Phys. Rev. B 79, 073301 (2009)(236) -
D. Golde, M. Wagner, D. Stehr, H. Schneider, M. Helm, A. M. Andrews, T. Roch, G. Strasser, M. Kira, and S. W. Koch
Fano signatures in the intersubband terahertz response of optically excited semiconductor quantum wells
Phys. Rev. Lett. 102, 127403 (2009)(237) -
A. Patanè, W. H. M. Feu, O. Makarovsky, O. Drachenko, L. Eaves, A. Krier, Q. D. Zhuang, M. Helm, M. Goiran, and G. Hill
Effect of low nitrogen concentrations on the electronic properties of InAs1−xNx
Phys. Rev. B 80, 115207 (2009)(238) -
F. Peter, S. Winnerl, H. Schneider, M. Helm, and K. Köhler
Large-area terahertz emitters based on GaInAsN
Proc. SPIE 7366 73661R (2009)(239) -
H. Schneider, H.C. Liu, S. Winnerl, C.Y. Song, O. Drachenko, M. Walther, J. Faist, and M. Helm
Quadratic detection with two-photon quantum well infrared photodetectors
Infrared Physics Technol. 52, 419 (2009)(240) -
H. Schneider, H. C. Liu, S. Winnerl, C. Y. Song, M. Walther, and M. Helm
Terahertz two-photon quantum well infrared photodetector
Optics Express 17, 12279-12284 (2009)(241) -
D. Stehr, C. M. Morris, D. Talbayev, M. Wagner, H. C. Kim, A. J. Taylor, H. Schneider, P. M. Petroff, and M. S. Sherwin
Ultrafast carrier capture in InGaAs quantum posts
Appl. Phys. Lett. 95, 251105 (2009)(242) -
D. Stehr, M. Wagner, H. Schneider, M. Helm, A. M. Andrews, T. Roch, G. Strasser
Two color pump-probe studies of intraminiband relaxation in doped GaAs/AlGaAs superlattices
Proc. SPIE 7214, 72141N (2009)(243) -
M. Wagner, D. Golde, D. Stehr, H. Schneider, M. Helm, A. M. Andrews, T. Roch, G. Strasser, M. Kira, and S. W. Koch
Fano profile in the intersubband terahertz response of photoexcited GaAs/AlGaAs quantum wells
Journal of Physics: Conference Series 193, 012073 (2009)(244) -
M. Wagner, H. Schneider, S. Winnerl, M. Helm, T. Roch, A. M. Andrews, S. Schartner and G. Strasser
Resonant enhancement of second order sideband generation for intra-excitonic transitions in GaAs/AlGaAs multiple quantum wells
Appl. Phys. Lett. 94, 241105 (2009)(245) -
S. Winnerl, B. Zimmermann, F. Peter, H. Schneider, and M. Helm
Terahertz emitters and detectors for radially and azimuthally polarized beams
Proc. SPIE 7366, 73661N (2009)(246) -
C. Wang, L. Kuznetsova, V. Gkortsas, L. Diehl, F. X. Kärtner, M. A. Belkin, A. Belyanin, X. Li, D. Ham, H. Schneider, P. Grant, C. Y. Song, S. Haffouz, Z. R. Wasilewski, H. C. Liu, and F. Capasso,
Mode-locked pulses from mid-infrared Quantum Cascade Lasers
Opt. Express 17, 12929-12943 (2009)(247) -
S. Winnerl, B. Zimmermann, F. Peter, H. Schneider, and M. Helm
Terahertz Bessel-Gauss beams of radial and azimuthal polarization from microstructured photoconductive antennas
Optics Express 17, 1571-1576 (2009)(248) -
E. A. Zibik, T. Grange, B. A. Carpenter, N. E. Porter, R. Ferreira, G. Bastard, D. Stehr, S.Winnerl, M. Helm, H. Y. Liu, M. S. Skolnick, and L. R. Wilson
Long lifetimes of quantum-dot intersublevel transitions in the terahertz range
Nature Materials 8, 803 - 807 (2009)(249)
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A. Dreyhaupt, F. Peter, S. Winnerl, S. Nitsche, M. Wagner, H.Schneider, M. Helm, and K. Köhler
Powerful Emitters and Easy-to-Use Detectors for Terahertz-Time-Domain Spectroscopy
Technisches Messen 75, 3 (2008)(250) -
A. Gordon, C. Y. Wang,, L. Diehl, F. X. Kärtner, A. Belyanin, D. Bour, S. Corzine, G. Höfler, H. C. Liu, H. Schneider, T. Maier, M. Troccoli, J. Faist, and F. Capasso
Multimode regimes in quantum cascade lasers: From coherent instabilities to spatial hole burning
Phys. Rev. A 77, 053804 (2008)(251) -
S. C. Kehr, M. Cebula, O. Mieth, T. Härtling, J. Seidel, S. Grafström, L. M. Eng, S. Winnerl, D. Stehr, and M. Helm
Anisotropy Contrast in Phonon-Enhanced Apertureless Near-Field Microscopy Using a Free-Electron Laser
Phys. Rev. Lett. 100, 256403 (2008)(252) -
F. Peter, S. Winnerl, H. Schneider, M. Helm, and K. Köhler
Terahertz emission from a large-area GaInAsN emitter
Appl. Phys. Lett. 93, 101102 (2008)(253) -
P. Rauter, T. Fromherz, S. Winnerl, M. Zier, A. Kolitsch, M. Helm, and G. Bauer
Terahertz Si:B blocked-impurity-band detectors defined by nonepitaxial methods
Appl. Phys. Lett. 93, 261104 (2008)(254) -
H.-G. von Ribbeck, M. Brehm, D. W. van der Weide, S. Winnerl, O. Drachenko, M. Helm, and F. Keilmann
Spectroscopic THz near-field microscope
Opt. Express 16, 3430 (2008)(255) -
H. Schneider, H. C. Liu, S. Winnerl, O. Drachenko, M. Helm, and J. Faist
Room-temperature mid-infrared two-photon photodetector
Appl. Phys. Lett. 93, 101114 (2008)(256) -
H. Schneider, H. C. Liu, T. Maier, and M. Walther
Two-photon photocurrent autocorrelation using intersubband transitions at nearly-resonant excitation
Optics Express 16, 1523 (2008)(257) -
D. Stehr, M. Wagner, H. Schneider, M. Helm, A. M. Andrews, T. Roch, and G. Strasser
Two-color pump-probe studies of intraminiband relaxation in doped GaAs/AlGaAs superlattices
Appl. Phys. Lett. 92, 051104 (2008)(258) -
C. V.-B. Tribuzy, S. Ohser, M. Priegnitz, S. Winnerl, H. Schneider, M. Helm, J. Neuhaus, T. Dekorsy, K. Biermann, and H. Künzel
Inefficiency of intervalley transfer in narrow InGaAs/AlAsSb quantum wells
Phys. Stat. Sol. C 5, 229 (2008)(259) -
M. T. Wenzel, T. Härtling, P. Olk, S. C. Kehr, S. Grafström, S. Winnerl, M. Helm, and L. M. Eng
Gold nanoparticle tips for optical field confinement in infrared scattering near-field optical microscopy
Optics Express 16, 12302-12312 (2008)(260) -
M. Wienold, M.P. Semtsiv, S. Dressler, W.T. Masselink, K. Potzger, S. Winnerl, and M. Helm
Fe-implantation for rear-facet coatings of InP-based quantum cascade lasers
Electron. Lett. 44, 293 (2008)(261) -
S. Winnerl, F. Peter, S. Nitsche, A. Dreyhaupt, B. Zimmermann, M. Wagner, H. Schneider, M. Helm, and K. Köhler
Generation and detection of THz radiation with scalable antennas based on GaAs substrates with different carrier lifetimes
IEEE J. Sel.Top. Quantum. Electron. 14, 449 (2008)(262)
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A. Ben Simon, Y. Paltiel, G. Jung, V. Berger, and H. Schneider
Measurements of non-Gaussian noise in quantum wells
Phys. Rev. B 76, 235308 (2007)(263) -
T. Grange, E. A. Zibik, R. Ferreira, G. Bastard, B. A. Carpenter, P. J. Phillips, D. Stehr, S. Winnerl, M. Helm, M. J. Steer, M. Hopkinson, J. W. Cockburn, M. S. Skolnick, and L. R. Wilson
Singlet and Triplet Polaron Relaxation in Doubly Charged Self-Assembled Quantum Dots
New J. Phys. 9, 259 (2007)(264) -
C. V-B. Grimm, M. Priegnitz, S. Winnerl, H. Schneider, M. Helm, K. Biermann, and H. Künzel
Intersubband relaxation dynamics in single and double quantum wells based on strained InGaAs/AlAs/AlAsSb
Appl. Phys. Lett. 91, 191121 (2007)(265) -
F. Peter, S. Winnerl, S. Nitsche, A. Dreyhaupt, H. Schneider, and M. Helm
Coherent terahertz detection with a large-area, non-resonant photoconductive THz antenna
Appl. Phys. Lett. 91, 081109 (2007)(266) -
S. Schneider, J. Seidel, S. Grafström, L. M. Eng, S. Winnerl, D. Stehr, and M. Helm
Impact of optical in-plane anisotropy on near-field phonon polariton spectroscopy
Appl. Phys. Lett. 90, 143101 (2007)(267) -
H. Schneider, T. Maier, H. C. Liu, and M. Walther
Two-photon photocurrent spectroscopy of electron intersubband relaxation and dephasing in quantum wells
Appl. Phys. Lett. 91, 191116 (2007)(268) -
H. Schneider, O. Drachenko, S. Winnerl, M. Helm, T. Maier, and M. Walther
Autocorrelation measurements of free-electron laser radiation using a two-photon QWIP
Infrared Physics & Technology 50, 95 (2007)(269) -
H. Schneider, O. Drachenko, S. Winnerl, M. Helm, and M. Walther
Autocorrelation measurements of the FELBE free-electron laser and photocurrent saturation study in two-photon QWIPs
Proc. SPIE Vol. 6471, 64710T (2007)
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A. Bartels, A. Thoma, C. Janke, T. Dekorsy, A. Dreyhaupt, S. Winnerl, and M. Helm
High-resolution THz spectrometer with kHz scan rates
Opt. Express 14, 430 (2006)(270) -
A. Dreyhaupt, S. Winnerl, M. Helm, and T. Dekorsy
Optimum excitation conditions for the generation of high-electric-field THz radiation from an oscillator-driven photoconductive device
Optics Lett. 31, 1546 (2006)(271) -
T. Maier, H. Schneider, H. C. Liu, M. Walther, and P. Koidl
Quantum well infrared photodetector with voltage-switchable quadratic and linear response
Appl. Phys. Lett. 88, 051117 (2006)(272) -
H. Schneider, O. Drachenko, S. Winnerl, M. Helm, and M. Walther
Quadratic autocorrelation of free-electron laser radiation and photocurrent saturation in two-photon quantum-well infrared photodetectors
Appl. Phys. Lett. 89, 133508 (2006)(273) -
H. Schneider, C. Schönbein, R. Rehm, M. Walther and P. Koidl
Domain pinning in quantum well infrared photodetectors
Appl. Phys. Lett. 88, 051114 (2006)(274) -
D. Stehr, M. Helm, C. Metzner, and M. C. Wanke
Microscopic theory of impurity states in coupled quantum wells and superlattices
Phys. Rev. B 74, 085311 (2006)(275) -
D. Stehr, S. Winnerl, M. Helm, T. Dekorsy, T. Roch, and G. Strasser
Pump-probe spectroscopy of interminiband relaxation and electron cooling in doped superlattices
Appl. Phys. Lett. 88, 151108 (2006)(276) -
C. V.-B. Tribuzy, S. Ohser, S. Winnerl, J. Grenzer, H. Schneider, M. Helm, J. Neuhaus, T. Dekorsy, K. Biermann, and H. Künzel
Femtosecond pump-probe spectroscopy of intersubband relaxation dynamics in narrow InGaAs/AlAsSb quantum well structures
Appl. Phys. Lett. 89, 171104 (2006)(277)
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