Prof. Dr. Martin Koch

Profile

Academic positionFull Professor
Research fieldsSemiconductor Physics,Atomic Physics, Molecular Physics, Laser Physics
KeywordsTHz spectroscopy, Ultrafst Spectroscopy on semiconductors, Semiconductor Lasers
Honours and awards

2019: Exceptional Service Award der IRMMW-THz Society

2009: IPB Patent Award

2003: Kaiser Friedrich Forschungspreis

Current contact address

CountryGermany
CityMarburg
InstitutionPhilipps-Universität Marburg
InstituteArbeitsgruppe Experimentelle Halbleiterphysik

Host during sponsorship

Dr. Jagdeep ShahAdvanced Photonics Research Department, AT & T, Holmdel
Start of initial sponsorship01/06/1995

Programme(s)

1994Feodor Lynen Research Fellowship Programme

Publications (partial selection)

2002M. Koch: Bio-medical Applications of THz Imaging. In: D. Mittleman, Sensing with Terahertz Radiation. Springer-Verlag, 2002.
2002T. Kleine-Ostmann, P. Knobloch, R. Caspary, M. Hofmann, and M. Koch: Dual-wavelength Fiber-Laser. In: Electron. Lett., 2002, 309
2002D. Turchinovich, A. Kammoun, P. Knobloch, T. Dobbertin, and M. Koch: Flexible All-Plastic Mirrors for the THz Range. In: Applied Physics A, 2002, 291
2002M. Breede, S. Hoffmann, J. Zimmermann, J. Struckmeier, M. Hofmann, T. Kleine-Ostmann, P. Knobloch, M. Koch, J.P. Meyn, M. Matus, S.W. Koch, and J.V. Moloney: Fourier-Transform External Cavity Lasers. In: Opt. Comm., 2002, 261
2002T. Kleine-Ostmann, M. Koch, and P. Dawson: Modulation of THz Radiation by Semiconductor Nanostrutures. In: Microwave and Optical Technology Letters, 2002, 343
2002M. Bieler, J. Hübner, and M. Oestreich, M. Koch, G. Hein, K. Pierz, and U. Siegner: Quantifying the drift velocity of carrier ensembles in time dependent electric fields. In: J. Appl. Phys., 2002, 9869
2001T. Kleine-Ostmann, P. Knobloch, M. Koch, S. Hoffmann, M. Breede, M. Hofmann, G. Hein, K. Pierz, M. Sperling, and K. Donhuijsen: Continous-wave THz Imaging. In: Electron. Lett., 2001, 1461
2001M.W. Feise, D.S. Citrin, M. Bieler, M. Koch, G. Hein, K. Pierz, U. Siegner, and M. Koch: Spatially resolved current dynamics in photoconductive switches. In: Optics and Photonics Series (TOPS), 2001, 134-138
2001M. Koch, K. Schmalstieg, P. Knobloch, S. Hunsche, M.C. Nuss, E. Rehberg, I. Sauter, J. Fromm, N.E. Hecker, M. Hempel, R. Haferkorn, I. Libon, and J. Feldmann: THz imaging of biological samples. In: R.E. Miles et al, Terahertz Sources and Systems. Kluwer Academic Press, 2001. 241-258
2001P. Knobloch, K. Schmalstieg, M. Koch, E. Rehberg, F. Vauti, and K. Donhuijsen: THz imaging of histo-pathological samples. In: Proceedings on the European Conference on Biomedical Optics, SPIE, 2001, 239
2001D. Turchinovich, P. Knobloch, G. Luessem, and M. Koch: THz time-domain spectroscopy on 4-(trans-4'-pentylcyclohexyl)-benzonitril. In: Proceedings of the SPIE meeting on Liquid Crystals V, 2001,
2000I.H. Libon, S. Baumgärtner, M. Hempel, N.E. Hecker, J. Feldmann, M. Koch, and P. Dawson: An Optically Controllable THz Filter. In: Appl. Phys. Lett., 2000, 2821
2000K. Leo, and M. Koch: Laser-excited wave packets in semiconductor heterostructures. In: J. Yeazell The physics and chemistry of wavepackets. Wiley&Sons, 2000. 285-331
2000C. Sönnichsen, A.C. Duch, G. Steininger, M. Koch, G. von Plessen, and J. Feldmann: Launching Surface Plasmons into Nanoholes in Metal Films. In: Appl. Phys. Lett., 2000, 140
2000M. Koch, M. Bieler, G. Hein, K. Pierz, and U. Siegner: Photoconductive Switches: The Role of Spatial Effects. In: Proceedings of the International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors VI, phys. stat. sol (b), 2000, 429
2000M. Bieler, G. Hein, K. Pierz, U. Siegner, and M. Koch: Spatial Pattern Formation of Optically Excited Carriers in Photoconductive Switches. In: Appl. Phys. Lett., 2000, 1002
1999N.E. Hecker, I.H. Libon, M. Hempel, S. Baumgärtner, M. Koch, P. Dawson, and J. Feldmann: A low power, optically controllable, THz attenuator. In: Proceedings of EOS/SPIE, Terahertz Spectroscopy and Applications II, 1999, 378
1999V.M. Axt, K. Siantidis, M. Herbst, T. Kuhn, S. Grosse, M. Koch, J. Feldmann: Coherent and incoherent aspects of the coupled exciton phonon system. In: Materials Science Forum , 1999, 79
1999R. Otremba, S. Grosse, M. Koch, J. Feldmann, W.M. Axt, T. Kuhn, and W. Stolz: Exitonic wave packets in space- and time-resolved pump and probe experiments. In: Solid State Communications, 1999, 317
1999M. Koch, S.T. Cundiff, W.H. Knox, J. Shah, and W. Stolz: Magnetoexciton Quantum Beats: Influence of Coulumb Correlations. In: Solid State Communications, 1999, 553
1999D.M. Mittleman, M. Gupta, R. Neelamani, R.G. Baraniuk, J.V. Rudd, and M. Koch: Recent Advances in Terahertz Imaging. In: Applied Physics B, 1999, 1085
1999V.M. Axt, T. Kuhn, K. Siantidis, S. Grosse, M. Koch, J. Feldmann: Spatio-temporal dynamics of optical nonlinearities in semiconductor quantum wells. In: Proceedings of SPIE, Ultrafast Phenomena in Semiconductors III, 1999,
1999M. Koch: THz imaging: fundamentals and biological applications. In: Proceedings of EOS/SPIE, Terahertz Spectroscopy and Applications II, 1999, 202
1999M. Koch, I.H. Libon, M. Hempel, S. Seitz, N.E. Hecker, J. Feldmann, D. Mittleman, F. Bartl, A. Hayd and G. Zundel: THz spectroscopy on polar liquids. In: V.J. Corcoran and T.A. Goldman, Proceedings of the LASER'98 conference. STS Press, McLean, VA, 1999. 225-231
1999I.H. Libon, M. Hempel, S. Seitz, N.E. Hecker, J. Feldmann, A. Hayd, G. Zundel, D. Mittleman, and M. Koch: THz spetroscopy of polar liquids. In: Proceedings of SPIE, Terahertz Spectroscopy and Applications, 1999,
1998M. Koch, J. Shah, and T. Meier: Cavtiy Quantum Electrodynamics: Observation of a Characteristic Nonlinear Response . In: Phys. Rev. B, 1998, R2049
1998S.T. Cundiff, M. Koch, W.H. Knox, J. Shah, and W. Stolz: Coherent Excitation of Magnetoexciton Wavepackets. In: Proceedings of the International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors V, phys. stat. sol. (b), 1998, 77
1998S. Grosse, R. Otremba, G. von Plessen, M. Koch, J. Feldmann, V.M. Axt, T. Kuhn, R. Rettig, and W. Stolz: Excitonic Quantum Beating in Space-and Time-Resolved Pump and Probe Experiments. In: T. Elsaesser, J.G. Fujimoto, D.A. Wiersma, and W. Zinth, Ultrafast Phenomena XI. Springer Verlag, 1998. 245
1998S. Hunsche, D.M. Mittleman, M. Koch, and M.C. Nuss: New Dimension in T-Ray Imaging. In: IEICE Trans. Electron., 1998, 269
1998S. Hunsche, M. Koch, and J. Feldmann: THz Near-Field Imaging. In: Appl. Phys. Lett., 1998, 2521
1998M. Koch, S. Hunsche, P. Schumacher, M. C. Nuss, Feldmann, and J. Fromm: THz-Imaging: a New Method for Density Mapping of Wood. In: Wood Science and Technology, 1998, 421
1998M. Koch: Ultrafast Oscillations in the Time-Resolved Emission of a Resonantly Excited Semiconductor Mircocavity. In: R. Helbig, Festkörperprobleme/ Advances in Solid State Physics. Vieweg Verlag, 1998. 169
1997S.T. Cundiff, M. Koch, W.H. Knox, J. Shah, and W. Stolz: Coherent Excition of Magnetoexciton Wavepackets. In: P.F. Barbara, W.H. Knox, Ultrafast Phenomena X. Springer Verlag, 1997.
1997S. Grosse, R. Arnold, G.V. Plessen, M. Koch, J. Feldmann, V.M. Axt, T. Kuhn, R. Rettig, and W. Stolz: Relaxation Dynamics of Electron-Hole Pairs Studied by Spaitotemporal Pump and Probe Experiments. In: Proceedings of the Hot Carriers in Semiconductors X, phys. stat. sol. (b), 1997, 147
1997B.C. Collings, S.T. Cundiff, S. Tsuda, W.H. Knox, J.E. Cunningham, W.Y. Jan, M. Koch, K. Bergman, and N. Kutz: Short Cavity Erbium Fiber Lasers Modelocked with a Saturable Bragg Reflector. In: IEEE Journal of Selected Topics in Quantum Electronics, 1997, 1065
1997P. Miltényi, M. Koch, M. Hofmann, H. Jung, and W. Elsäßer: Spectrally and Temporally Resolved Gain Dynamics in Mode Locked Semiconductor Lasers. In: Appl. Phys. Lett., 1997, 1506
1997M. Tsuchiya, M. Koch, J. Shah, T.C. Damen, W.Y. Jan, and J.E. Cunningham: THz Oscillations in the Emission from a Semiconductor Microavity. In: Appl. Phys. Lett. , 1997, 1240
1997M. Koch, J. Shah, H. Wang, T.C. Damen, J.E. Cunningham, and W.Y. Jan: Ultrafast Oscillations in the Optical Emission form a Semiconductor Microavity. In: P.F. Barbara, W.H. Knox, Ultrafast Phenomena X. Springer Verlag, 1997.
1996T.F. Albrecht, K. Bott, T. Meier, A. Schulze, M. Koch, S.T. Cundiff, J. Feldmann, W. Stolz, P. Thomas, S.W. Koch, and E.O. Göbel: Disorder mediated biexcitontic beats in semiconductor quantum wells. In: Phys. Rev. B, 1996, 4436
1996G.v. Plessen, T. Meier, M. Koch, J. Feldmann, P. Thomas, S.W. Koch, E.O. Göbel, K.W. Goossen, J.M. Kuo, and R.F. Kopf: Exciton ionization induced by an electric field in a strongly-coupled GaAS/AlGaAs superlattice. In: Phys. Rev. B, 1996, 13688
1996M. Koch, G. Von Plessen, J. Feldmann, and E.O. Göbel: Excitonic Quantum Beats in Semiconductor Quantum-Well Structures. In: Chem. Phys., 1996, 367
1996S.T. Cundiff, R. Hellmann, M. Koch, G. Mackh, A. Waag, G. Landwehr, W.H. Knox, and E.O. Göbel: Excitonic dephasing in semimagnetic semiconductors. In: J. Opt. Soc. Am. B, 1996, 1263
1996M. Koch, G. v. Plessen, T. Meier, J. Feldmann, S.W. Koch, P. Thomas, E.O. Göbel, K.W. Goossen, J.M. Kuo, and R.F. Kopf: Field-induced exciton ionization studied by four-wave mixing. In: K. Hess, Hot Carriers in Semiconductors. Plenum Press, 1996.
1996S.T. Cundiff, M. Koch, W.H. Knox, J. Shah, and W. Stolz: Optical Coherence in Semiconductors: Strong Emission Mediated by Nondegenerate Interactions. In: Phys. Rev. Lett., 1996, 1107
1996F. Löser, M. Koch, H. Wang, and J. Shah: Vaccum Rabi Oscillations in Semiconductor Microcavities in the Presence of Inhomogeneous Broadening. Proceedings of the EXON 1996, Technical Digest. Dresden University Press, 1996.
1995J. Feldmann, M. Koch, G. von Plessen, T. Meier, W. Stolz, P. Thomas, E.O. Göbel: Coherent Dynamics of Exitonic Wave Packets in Quantum Wells and Superlattices. In: D.J. Lookwood, World Scientific (Proc. of the 22nd International Conference on the Physics of Semiconductors). 1995. 1296
1995R. Hellmann, S.T. Cundiff, M. Koch, J. Feldmann, E.O. Göbel, B. Kuhn-Heinrich, D.R. Yakovlev, A. Waag, and G. Landwehr: Dephasing of Localized and Delocalized Excitons in Disordered CdTe/(Cd,Mg)Te Multiple Quantum Wells. In: Materials Science Forum, 1995, 199
1995G. v. Plessen, T. Meier, M. Koch, J. Feldmann, S.W. Koch, P. Thomas, E.0. Göbel, K.W. Goosssen, J.M. Kuo, and R.F. Kopf: Electric-field-induced exciton ionization in a GaAs/AlGaAs superlattice. In: Nuov. Cim. D, 1995, 1759
1995M. Koch, R. Hellmann, G. Bastian, J. Feldmann, E.O. Göbel, and P. Dawson: Enhanced energy and phase relaxation of excitions in the presence of bare electrons. In: Phys. Rev. B, 1995, 13887
1995M. Koch, G. Bastian, R. Hellmann, J. Feldmann, E.O. Göbel, and P. Dawson: Exciton scatting with bare electrons. In: Proceedings of the International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors IV, phys. stat. sol. (b), 1995, 485
1995T. Stroucken, A. Knorr, C. Anthony, P. Thomas, S.W. Koch, M. Koch, S.T. Cundiff, J. Feldmann, and E.O. Göbel: Light Propagation and disorder Effects in Semiconductor Multiple Quantum Wells. In: Phys. Rev. Lett., 1995, 2391
1995S.T. Cundiff, R. Hellmann, M. Koch, J. Feldmann, E.O. Göbel, D.R. Yakovlev, A. Waag, and G. Landwehr: Subpicosecond Optical Dephasing in Dilute Magnetic Semiconductors. In: Materials Science Forum, 1995, 735