Prof. Dr. Martin Koch

Philipps-Universität Marburg

Department of Physics

Renthof 5 (LB2), 35032 Marburg
Phone: +49 6421 28-22119 (Renthof)
Phone: +49 6421 28-22270 (Lahnberge)
Fax: +49 6421 28-27036


Experimental physics, laser spectroscopy of semiconductors and semiconductor heterostructures, terahertz spectroscopy

University Education

1995 Doctoral degree in Physics (Dr. rer. nat.), Philipps-Universität Marburg, Dissertation on “Quantenschwebungs-Spektroskopie an exzitonischen Übergängen in Halbleiter-Heterostrukturen”, thesis advisor: Prof. E. O. Göbel
1991 Diploma degree in Physics (Dipl. Phys.), Philipps-Universität Marburg, supervisor: Prof. E. O. Göbel
1985-91 Studies in Physics, Philipps-Universität Marburg and Ruprecht-Karls-Universität Heidelberg

Professional Experience

2009- Professor (W3) of Experimental Semiconductor Physics, Philipps-Universität Marburg
2003 Visiting scientist, Physics Department, Univ.of California Santa Barbara, CA, USA
1998-09 Professor (C3) at the Technical University of Braunschweig, head of the group “THz Technology”
1996-98 Research assistant, Physics Department, Ludwig-Maximilians-Universität München
1995-96 Post-doc at Bell Laboratories / Lucent Technologies, Holmdel, NJ, USA

Honours, Awards and other Proofs of Qualification

2019 Exceptional Service Award of the Society of Infrared, Millimeter, and Terahertz Waves
2009 Editor-in-chief of the Springer-Journal “Journal of Infrared, Millimeter and Terahertz Waves”
2009 IPB Patent Award
2007 First chairman of Deutsches Terahertz-Zentrum e. V.
2003 Kaiser Friedrich research award
1995 “The J. J. Thompson Premium” of the Institute of Engineering and Technology, Great Britain
1994 Feodor Lynen Scholarship by Alexander von Humboldt Foundation

Selected Publications

  1. M. Koch, J. Feldmann, G. v. Plessen, E. O. Göbel, P. Thomas, K. Köhler, Quantum Beats vs. Polarization Interference: An Experimental Distinction, Phys. Rev. Lett. 69, 3631 (1992).
  2. J. Feldmann, T. Meier, G. v. Plessen, M. Koch, E. O. Göbel, P. Thomas, G. Bacher, C. Hartmann, H. Schweizer, W. Schäfer, H. Nickel, Coherent Dynamics of Excitonic Wave Packets, Phys. Rev. Lett. 70, 3027 (1993).
  3. S. T. Cundiff, M. Koch, W. H. Knox, J. Shah, W. Stolz, Optical Coherence in Semiconductors: Strong Emission Mediated by Nondegenerate Interactions, Phys. Rev. Lett. 77, 1107 (1996).
  4. S. Imhof, A. Thränhardt, A. Chernikov, M. Koch, N. S. Köster, S. Chatterjee, S. W. Koch, X. Lu, S. R. Johnson, D. A. Beaton, T. Tiedje, O. Rubel, Clustering Effects in Ga(AsBi), Appl. Phys. Lett. 96, 131115 (2010).
  5. P. Jepsen, D. G. Cooke, M. Koch, Terahertz spectroscopy and imaging – Modern techniques and applications, Laser Photon. Rev. 5, 124 (2011), invited article.
  6. A. Arndt, M. Gerhard, A. Quintilla, I. A. Howard, M. Koch, U. Lemmer, Time-Resolved Charge-Transfer State Emission in Organic Solar Cells: Temperature and Blend Composition Dependences of Interfacial Traps, J. Phys. Chem C. 119, 13516 (2015).
  7. M. Gerhard, A. P. Arndt, I. A. Howard, A. Rahimi-Iman, U. Lemmer, M. Koch, Temperature- and Energy-Dependent Separation of Charge-Transfer States in PTB7-Based Organic Solar Cells, J. Phys. Chem C. 119, 28309 (2015).
  8. C. Möller, C. Fuchs, C. Berger, A. Ruiz Perez, M. Koch, J. Hader, J.V. Moloney, S. W. Koch, W. Stolz, Type-II VECSEL with Watt Level Output Powers at 1.2 µm, Appl. Phys. Lett. 108, 071102 (2016).
  9. M. Stein, C. Lammers, P.-H. Richter, C. Fuchs, W. Stolz, M. Koch, O. Vänskä, M. J. Weseloh, M. Kira, S. W. Koch, Dynamics of charge-transfer excitons in type-II semiconductor heterostructures, Phys. Rev. B. 97, 125306 (2018).
  10. M. Stein, C. Lammers, M. J. Drexler, C. Fuchs, W. Stolz, M. Koch, Enhanced Absorption by Linewidth Narrowing in Optically Excited Type-II Semiconductor Heterostructures, Phys. Rev. Lett. 121, 017401 (2018).


  1. P. Knobloch, D. Turchinovich, T. Dobbertin, M. Koch, Optical Component (German Patent DE 10033259 C2 (2003)).
  2. Enders, M. Koch, C. Jördens, THz-Transmitter and THz-Receiver (German Patent DE 10 2005 032 900 B3 (2007)).
  3. M. Koch, C. Jördens, K. Baaske, G. Thorwirth, Imaging device for objects via a source of terahertz radiation (German Patent DE 10 2006 012 715 B4 (2008)).