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Dr. Christoph Lange

Office PHY 2.1.10
Phone +49 941 943-5741
Fax +49 941 943-4223
e-Mail christoph.langephysik.uni-regensburg.de
Postal address Institut für Experimentelle und Angewandte Physik
Universität Regensburg
Universitätsstraße 31
93053 Regensburg
Germany

Academic career

2001 -
2005

Studies of physics at the Philipps-Universität Marburg

2005 -
2006

Diploma, thesis: "Transient absorption spectroscopy of ternary III-V semiconductors and dilute nitrides" Faculty of Physics and Materials Sciences Center, Philipps-Universität Marburg
Advisor: Prof. Dr. Wolfgang Rühle

2006 -
2008

PhD, thesis: "Semiconductor nanostructures on silicon: carrier dynamics, optical amplifier and laser" Faculty of Physics and Materials Sciences Center, Philipps-Universität Marburg
Advisor: Prof. Dr. Wolfgang Rühle

2009

Postdoctoral fellow, Philipps-Universität Marburg
(group of Prof. Dr. Martin Koch)

2009-2011

Feodor-Lynen research fellow, Department of Physics, University of Toronto, Toronto
(group of Prof. Dr. Henry van Driel)

Since December 2011

Postdoc with Prof. Dr. Rupert Huber


List of selected publications

  • M. Knorr, J. Raab, M. Tauer, P. Merkl, D. Peller, E. Wittmann, E. Riedle, C. Lange and R. Huber
    Phase-locked multi-terahertz electric fields exceeding 13 MV/cm at 190 kHz repetition rate
    Optics Letters 42, 4367-4370 (2017)

  • A. Bayer, M. Pozimski, S. Schambeck, D. Schuh, R. Huber, D. Bougeard and C. Lange
    Terahertz light-matter interaction beyond unity coupling strength
    Nano Letters, doi: 10.1021/acs.nanolett.7b03103

  • S. Baierl, J. H. Mentink, M. Hohenleutner, L. Braun, T.-M. Do, C. Lange, A. Sell, M. Fiebig, G. Woltersdorf, T. Kampfrath and R. Huber
    Terahertz-Driven Nonlinear Spin Response of Antiferromagnetic Nickel Oxide
    Physical Review Letters 117, 197201 (2016)

  • B. Urbanek, M. Möller, M. Eisele, S. Baierl, D. Kaplan, C. Lange and R. Huber
    Femtosecond terahertz time-domain spectroscopy at 36 kHz scan rate using an acousto-optic delay
    Appl. Phys. Lett. 108, 121101 (2016)

  • Cover story of the March 21, 2016 issue, and Editor's pick.
  • T. Maag, A. Bayer, S. Baierl, M. Hohenleutner, T. Korn, C. Schüller, D. Schuh, D. Bougeard, C. Lange, R. Huber, M. Mootz, J. E. Sipe, S. W. Koch and M. Kira
    Coherent cyclotron motion beyond Kohn's theorem
    Nature Physics 12, 119-123 (2016)

  • S. Zanotto, C. Lange, T. Maag, A. Pitanti, V. Miseikis, C. Coletti, R. Degl'Innocenti, L. Baldacci, R. Huber and A. Tredicucci
    Magneto-optic transmittance modulation observed in a hybrid graphene-split ring resonator terahertz metasurface
    Appl. Phys. Lett. 107, 121104 (2015)

  • N. Paradiso, F. Yaghobian, C. Lange, T. Korn, C. Schüller, R. Huber, and C. Strunk
    Tailored nanoantennas for directional Raman studies of individual carbon nanotubes
    Physical Review B 91, 235449 (2015)

  • C. Lange, T. Maag, M. Hohenleutner, S. Baierl, O. Schubert, E. Edwards, D. Bougeard, G. Woltersdorf, and R. Huber
    Extremely nonperturbative nonlinearities in GaAs driven by atomically strong terahertz fields in gold metamaterials
    Physical Review Letters 113, 227401 (2014)

  • O. Schubert, M. Hohenleutner, F. Langer, B. Urbanek, C. Lange, U. Huttner, D. Golde, T. Meier, M. Kira, S. W. Koch and R. Huber
    Sub-cycle control of terahertz high-harmonic generation by dynamical Bloch oscillations
    Nature Photonics 8, 119-123 (2014)

  • J. J. Dean, C. Lange, and H. M. van Driel
    Ultrafast surface strain dynamics in MnAs thin films observed with second harmonic generation
    Physical Review B 89, 024102 (2014)

  • A. Hayat, C. Lange, L. A. Rozema, A. Darabi, H. M. van Driel, A. M. Steinberg, B. Nelsen, D. W. Snoke, L. N. Pfeiffer, K. W. West
    Dynamic Stark Effect in Strongly Coupled Microcavity Exciton Polaritons
    Physical Review Letters 109, 033605 (2012)

  • C. Lange, G. Isella, D. Chrastina, F. Pezzoli, N. S. Köster, R. Woscholski, and S. Chatterjee,
    Spin band-gap renormalization and hole spin dynamics in Ge/SiGe quantum wells
    Physical Review B 85, 241303(R) (2012)

  • Niko S. Köster, Kolja Kolata, Ronja Woscholski, Christoph Lange, Giovanni Isella, Daniel Chrastina, Hans von Känel, and Sangam Chatterjee,
    Giant dynamical Stark shift in germanium quantum wells
    Applied Physics Letters 98, 161103 (2011)

  • C. Lange, M. Schwalm, B. Metzger, and S. Chatterjee,
    Carrier-depletion in the stripe-length method: Consequences for gain measurement
    Journal of Applied Physics 108, 103119 (2010)

  • M. Schwalm, C. Lange, W. W. Rühle, W. Stolz, K. Volz, and S. Chatterjee,
    Characterization of solar cells by photocurrent spectroscopy and current-voltage characteristics with high spatial resolution
    Optics Express 18, 6277-6287 (2010)

  • C. Lange, N. S. Köster, S. Chatterjee, H. Sigg, D. Chrastina, G. Isella, H. von Känel, B. Kunert, and W. Stolz,
    Comparison of ultrafast carrier thermalization in Ge and (GaIn)As quantum wells
    Physical Review B 81, 045320 (2010)

  • C. Lange, N. S. Köster, S. Chatterjee, H. Sigg, D. Chrastina, G. Isella, H. von Känel, M. Schäfer, M. Kira, S. W. Koch,
    Ultrafast nonlinear optical response of photoexcited Ge/SiGe quantum wells: Evidence for a femtosecond transient population inversion
    Physical Review B 79, 201306(R) (2009), selected for the June 2009 issue of Virtual Journal of Ultrafast Science

  • C. Lange, M. Schwalm, S. Chatterjee, W.W. Rühle, N. Gerhardt, S. Johnson, J. Wang, Y.-H. Zhang,
    The Variable Stripe-Length Method Revisited: Improved Analysis
    Applied Physical Letters 91, 191107 (2007)

  • C. Lange, S. Chatterjee, C. Schlichenmaier, A. Thränhardt, S.W. Koch, W.W. Rühle, J. Hader, J. V. Moloney, G. Khitrova, and H. M. Gibbs,
    Transient gain spectroscopy of (GaIn)As quantum wells: Experiment and microscopic analysis
    Applied Physical Letters 90, 251102 (2007)

  • S. Chatterjee, W. Wohlleben, C. Lange, W. Stolz, M. Motzkus, and W.W. Rühle,
    Optimizing the performance of a vertical-cavity surface-emitting laser
    Applied Physics Letters 89, 151122 (2006), selected for the Virtual Journal of Ultrafast Science

  • J. Vollmer, A.G. Vegh, C. Lange, B. Eckhardt,
    Vortex formation by active agents as a model for Daphnia swarming
    Physical Review E 73, 061924 (2006)