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KACHEL, Stefan Renato Dr.

Photo of Dr. Stefan Renato KACHEL
SFB ManagerPhilipps-Universität MarburgSFB 1083 OfficePhone: +49-6421 28-24223Link: Project Z (central services)


PhD-studentPhilipps-Universität MarburgDepartment of PhysicsPhone: +49-6421 28-24138Link: Project A3 (Jakob)

KALFF, Carolin

PhD-studentPhilipps-Universität MarburgDepartment of ChemistryPhone: +49-6421 28-25639Link: Project A8 (Koert/Dürr)

KIRCHHOFF, Alexander

PhD-studentWestfälische Wilhelms-Universität MünsterDepartment of Physics, Inst. of Solid State TheoryPhone: +49-251 83-33583Link: Project A13 (Rohlfing)


Former PhD studentPhilipps-Universität MarburgDepartment of ChemistryLink: Project A8 (Koert/Dürr)

KLEMENT, Philip Dr.

PostdocJustus-Liebig-Universität GießenInstitute of Experimental PhysicsPhone: +49-641 99-33123Link: Project B2 (Chatterjee)

KNORR, Willy

PhD-StudentPhilipps-Universität MarburgDepartment of PhysicsPhone: +49-6421 28-22638Link: Project B9 (Malic)

KOCH, Martin Prof. Dr.

Photo of Prof. Dr. Martin KOCH
Principal InvestigatorPhilipps-Universität MarburgDepartment of PhysicsHans-Meerwein-Straße 35032 MarburgPhone: +49-6421 28-22119 (Renthof)Phone: +49-6421 28-22270 (Lahnberge)Link: Project B12 (M Koch)Link: Biography


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

University Education

1995Doctoral 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
1991Diploma degree in Physics (Dipl. Phys.), Philipps-Universität Marburg, supervisor: Prof. E. O. Göbel
1985-1991Studies in Physics, Philipps-Universität Marburg and Ruprecht-Karls-Universität Heidelberg

Professional Experience

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

Honours, Awards and other Proofs of Qualification

2009Editor-in-chief of the Springer-Journal “Journal of Infrared, Millimeter and Terahertz Waves”
2009IPB Patent Award
2007First chairman of Deutsches Terahertz-Zentrum e. V.
2003Kaiser Friedrich research award
1995“The J. J. Thompson Premium” of the Institute of Engineering and Technology, Great Britain
1994Feodor 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. W.D. Rice, J. Kono, S. Zybell, S. Winner, 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, S. W. Koch
    Observation of Forbidden Exciton Transitions Mediated by Coulomb Interactions in Photoexcited Semiconductor Quantum Wells
    Phys. Rev. Lett. 110, 137404 (2013).
  7. 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).
  8. 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).
  9. 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).
  10. M.A. Gaafar, A. Rahimi-Iman, K. A. Fedorova, W. Stolz, E. U. Rafailov, M. Koch
    Mode-Locked Semiconductor Disk Lasers
    Adv. Opt. Photonics 8, 370 (2016).


  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)).

KOCH, Stephan W Prof. Dr.

Photo of Prof. Dr. Stephan W KOCH
Former Principal InvestigatorPhilipps-Universität MarburgDepartment of PhysicsLink: Project B4 (SW Koch)Link: Project B7 (Stolz/SW Koch)Link: Biography


Theoretical physics, condensed matter theory, optical and electronic properties of semiconductors, many-body interactions, semiconductor quantum optics, quantum confinement in solids, coherent and ultrafast phenomena, semiconductor laser theory, microcavity and photonic crystal effects

University Education

1983Habilitation in Theoretical Physics, Goethe-Universität Frankfurt, “Dynamics of First-Order Phase Transitions in Equilibrium and Nonequilibrium Systems”
1979Doctoral degree in Physics (Dr. phil. nat.), Goethe-Universität Frankfurt, dissertation on “Zur Theorie der Elektron-Loch-Tropfennukleation in stark angeregten Halbleitern”, supervisor: Prof. H. Haug
1977Diploma degree in Physics (Dipl. Phys.), Goethe-Universität Frankfurt, supervisor: Prof. H. Haug

Professional Experience

since 2019Senior Research Professor, Philipps-Universität Marburg
2001-2006Coordinator of the Interdisciplinary Research Center “Optodynamics”, Philipps-Universität Marburg
 1995-2001 Speaker of the Sonderforschungsbereich 383 “Disorder on Mesoscopic Scales”, Philipps-Universität Marburg, Department of Physics
 1993-2019 Professor (C4/W3) at the Philipps-Universität Marburg
since 1993 Adjunct Professor at the University of Arizona, Optical Sciences Center,
Tucson, AZ, USA
 1989-1993 Professor at the University of Arizona, Department of Physics and Optical Sciences Center, Tucson, AZ, USA
 1986-1989 Associate Professor at the University of Arizona, Department of Physics and Optical Sciences Center, Tucson, AZ, USA
 1985-1986 Heisenberg Fellow at the Goethe-Universität Frankfurt
 1983 Visiting Scientist at IBM Research, San Jose, CA, USA
 1982-1984 Postdoc Fellow at the Sonderforschungsbereich 65, Goethe-Universität Frankfurt
 1981-1982 Postdoc Fellow at IBM Research, San Jose, CA, USA
 1977-1981 Research Assistant at the Goethe-Universität Frankfurt

Honours, Awards and other Proofs of Qualification

2008“Outstanding referee” lifetime award of the APS
2007Member of the Editorial Board “Laser and Photonics Reviews”
2006Prize for the Advancement of Women in Science, Philipps-Universität Marburg
2001-2006Member of the Kuratorium “Physik Journal”
1999Max-Planck Research Prize of the A. v. Humboldt Foundation & Max-Planck-Soc.
1998-2004Topical Editor “European Physical Journal”
1997Leibniz Prize of the Deutsche Forschungsgemeinschaft (DFG)
1997-2000Divisional Associate Editor “Physical Review Letters”
1995“The J. J. Thompson Premium” of the Inst. of Eng. & Technol., Great Britain
1993Fellow of the Optical Society of America
1985Heisenberg Fellow of the Deutsche Forschungsgemeinschaft (DFG)
1984Fritz Thyssen Fellowship for highly gifted young scientists
1976Studienstiftung des Deutschen Volkes

Selected Publications

  1. H. M. Gibbs, G. Khitrova, S. W. Koch
    Exciton-polariton light-semiconductor coupling effects
    Nat. Photonics 5, 275 (2011).
  2. J. L. Tomaino, A. D. Jameson, Y. S. Lee, G. Khitrova, H. M. Gibbs, A. C. Klettke, M. Kira, S. W. Koch
    Terahertz excitation of a coherent Lambda-type three-level system of exciton-polariton modes in a quantum-well microcavity
    Phys. Rev. Lett. 108, 267402 (2012).
  3. 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, S. W. Koch
    Observation of forbidden exciton transitions mediated by Coulomb interactions in photoexcited semiconductor quantum wells
    Phys. Rev. Lett. 110, 137404 (2013).
  4. O. Schubert, M. Hohenleutner, F. Langer, B. Urbanek, C. Lange, U. Huttner, D. Golde, T. Meier, M. Kira, S. W. Koch, R. Huber
    Sub-cycle control of terahertz high-harmonic generation by dynamical Bloch oscillations
    Nat. Photonics 8, 119-123 (2014).
  5. E. Almand-Hunter, H. Li, S. T. Cundiff, M. Mootz, M. Kira, S. W. Koch
    Quantum droplets of electrons and holes
    Nature 506, 471-475 (2014).
  6. O. Vänskä, I. Tittonen, S. W. Koch, M. Kira
    Coherent terahertz control of vertical transport in semiconductor heterostructure
    Phys. Rev. Lett. 114, 116802 (2015).
  7. M. Hohenleutner, F. Langer, O. Schubert, M. Knorr, U. Huttner, S. W. Koch, M. Kira, R. Huber
    Real-time observation of interfering crystal electrons in high-harmonic generation
    Nature 523, 572 (2015).
  8. 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, M. Kira
    Coherent cyclotron motion beyond Kohn’s theorem
    Nature Physics 12, 119 (2016).
  9. F. Langer, M. Hohenleutner, C. P. Schmid, C. Poellmann, P. Nagler, T. Korn, C. Schüller, M. S. Sherwin, U. Huttner, J. T. Steiner, S. W. Koch, M. Kira, R. Huber
    Lightwave-driven quasiparticle collisions on a subcycle timescale
    Nature 533, 225 (2016).
  10. N. W. Rosemann, J. P. Eußner, A. Beyer, S. W. Koch, K. Volz, S. Dehnen, S. Chatterjee
    A highly efficient directional molecular white-light emitter driven by a continuous-wave laser diode
    Science 352, 1301 (2016).

KOERT, Ulrich Prof. Dr.

Photo of Prof. Dr. Ulrich KOERT
Principal InvestigatorPhilipps-Universität MarburgDepartment of ChemistryPhone: +49-6421 28-26970Link: Project A8 (Koert/Dürr)Link: Project A16 (Gottfried/Koert)Link: Project MGK (Koert/Witte)Link: Biography


Organic synthesis of complex molecules (natural products, functional molecules, ion channels, molecular switches), development of selective and efficient synthetic methods

University Education

1994Habilitation in Organic Chemistry, Philipps-Universität Marburg “Synthesis of natural and non-natural oligo-tetrahydrofurans”, mentor: Prof. Dr. R. W. Hoffmann
1989Doctoral degree in Chemistry, J. W. Goethe Universität Frankfurt, Dissertation on “Contributions to the Synthesis of (+)-Tylonolide”, thesis advisor: Prof. G. Quinkert
1985Diploma degree in Chemistry, J. W. Goethe Universität Frankfurt, supervisor: Prof. G. Quinkert
1980-1985Studies in Chemistry, J. W. Goethe Universität Frankfurt

Professional Experience

since 2013Professor (W3) for Organic Chemistry, Philipps-Universität Marburg
2013-2016Vice-President for Research, Philipps-Universität Marburg
2001-2013Professor (C4) for Organic Chemistry, Philipps-Universität Marburg
1996-2001Professor (C4) for Organic and Bioorganic Chemistry, Humboldt Universität (Berlin)
1996Professor (C3) for Organic Chemistry at the LMU (München)
1995Visiting associate professor University of Wisconsin at Madison
1999-1994Habilitand, Department of Chemistry, Philipps-Universität Marburg
1988-1990Postdoc, Université Louis Pasteur Strasbourg/France, Prof. J.-M. Lehn

Honours, Awards and other Proofs of Qualification

2011Visiting professor at the Osaka-Prefecture University Japan
2005-2006Dean Chemistry Department, Philipps-Universität Marburg
2001Steinhofer Lectureship Universität Freiburg
1998Otto-Bayer Preis

Selected Publications

  1. H.-D. Arndt, A. Knoll, U. Koert
    Cyclohexylether δ-Amino Acids: New Leads for Ion-Channel Selectivity Filters
    Angew. Chem. Int. Ed. 40, 2076 (2001).
  2. H. Wehlan, M. Dauber, M. T. Mujica Fernaud, J. Schuppan, M. E. Juarez Garcia, U. Koert
    Total Synthesis of Apoptolidin
    Angew. Chem. Int. Ed. 43, 4597 (2004).
  3. J. R. Pfeifer, P. Reiß, U. Koert
    Crown Ether-Gramicidin Hybrid Ion Channels: Dehydration-Assisted Ion Selectivity
    Angew. Chem. Int. Ed. 45, 501 (2006).
  4. P. T. Daniel, U. Koert, J. Schuppan
    Apoptolidin: induction of apoptosis by a natural product
    Angew. Chem. Int. Ed. 45, 872 (2006), Angew. Chem. 118, 886 (2006).
  5. S. Reitz, M. Cebi, P. Reiß, G. Studnik, U. Linne, U. Koert, L. O. Essen
    Structural and Functional Insights into Synthetically Modified Porins
    Angew. Chem. Int. Ed. 48, 4853 (2009).
  6. C. M. König, B. Gebhardt, C. Schleth, M. Dauber, U. Koert
    Total Synthesis of Phoslactomycin A
    Org. Lett. 11, 2728 (2009).
  7. M. Wohlfahrt, K. Harms, U. Koert
    Asymmetric Allylboration of vic-Tricarbonylcompounds: Total Synthesis of (+)-Awajanomycin
    Angew. Chem. Int. Ed. 50, 8404 (2011), Angew. Chem. 123, 8554 (2011).
  8. T. Burckhardt, K. Harms, U. Koert
    Total Synthesis of Lodopyridone
    Org. Lett. 14, 4674 (2012).
  9. M. Dischmann, T. Frassetto, M. A. Breuning, U. Koert
    Total Synthesis of Isoquinocyclinone
    Chem. Eur. J. 20, 11300 (2014).
  10. J. Roßbach, K. Harms, U. Koert
    α-Crotyl-α-difluoroboranyloxy-amides: Structure and Reactivity of Isolable Intermediates in Stereospecific α-Ketol Rearrangements
    Org. Lett. 17, 3122 (2015).


  1. U. Koert, H. G. Weinig, R. Krauss (Anmelderin AnalytiCon AG), Dekalinderivate zur molekularen Signaltransduktion (PCT/DE00/03161 (2001)).

KOTHE, Michael Dr.

Former PhD studentPhilipps-Universität MarburgDepartment of PhysicsRenthof 7 35032 MarburgLink: Project A2 (Witte)

KREUZ, Oliver

PhD-studentPhilipps-Universität MarburgDepartment of ChemistryPhone: +49-6421 28-25686Link: Project B8 (Berger)

KRUG, Claudio Dr.

Former PhD-studentPhilipps-Universität MarburgDepartment of ChemistryLink: Project A4 (Gottfried)

KRUG, David

PhD-studentPhilipps-Universität MarburgMaterial Science Center (WZMW), Structure & Technology Research LaboratoryPhone: +49-6421 28-25610Link: Project A5 (Volz)

KRÜGER, Peter apl. Prof. Dr.

ResearcherWestfälische Wilhelms-Universität MünsterDepartment of Physics, Inst. of Solid State TheoryPhone: +49-251 83-39042Link: Project A13 (Rohlfing)


Former PhD-studentPhilipps-Universität MarburgDepartment of PhysicsLink: Project B3 (M Koch/Heimbrodt)

KÜKELHAN, Pirmin Dr.

Former PostdocPhilipps-Universität MarburgMaterial Science Center (WZMW), Structure & Technology Research LaboratoryLink: Project A5 (Volz)

KUMPF, Christian Prof. Dr.

Photo of Prof. Dr. Christian KUMPF
Principal InvestigatorForschungszentrum JülichPeter Grünberg Institut (PGI-3) 52425 JülichPhone: +49-2461 61-1452Link: Project A12 (Tautz/Bocquet/Kumpf)Link: Biography


Surface and interface science; interactions at metal-organic interfaces; properties of molecular adsorbates and nanostructures at surfaces; x-ray standing waves; low energy electron microscopy and diffraction; photoelectron microscopy, spectroscopy and tomography

University Education

2006Habilitation in Experimental Physics, Universität Würzburg
1998Doctoral degree in Physics, University Rostock
1994Diploma in Physics, Universität Erlangen

Professional Experience

since 2012W2 Professor, Experimental Physics IV A, Rheinisch Westfälische Technische Hochschule Aachen
since 2008Group Leader, Peter Grünberg Institute, Functional Nanostructures at Surfaces (PGI-3), Forschungszentrum Jülich
2006-2008Akademischer Oberrat, University Würzburg
2001-2006Wissenschaftlicher Assistent (C1), University Würzburg
1999-2001Post-Doc, Risø National Laboratory, Roskilde, Denmark

Honours, Awards and other Proofs of Qualification

since 2013Member (since 2015 chairperson) of the Peer Review Panel of the Diamond Light Source, Great Britain
2007-2013Elected Member of the Users Organization Committee (UOC) of the European Synchrotron Radiation Facility (ESRF), Grenoble, France

Selected Publications

  1. C. Stadler, S. Hansen, I. Kröger, E. Umbach, C. Kumpf
    Tuning intermolecular interaction in long-range ordered submonolayer organic films
    Nature Phys. 5, 153 (2009).
  2. B. Stadtmüller, T. Sueyoshi, G. Kichin, I. Kröger, S. Soubatch, R. Temirov, F. S. Tautz, C. Kumpf
    Electrostatic interaction and commensurate registry at the heteromolecular F16CuPc – CuPc interface
    Phys. Rev. Lett. 108, 106103 (2012).
  3. T. Duden, A. Thust, C. Kumpf, F. S. Tautz
    Focal-Series Reconstruction in Low Energy Electron Microscopy
    Microsc. Microanal. 20 (3), 968 (2014).
  4. B. Stadtmüller, D. Lüftner, M. Willenbockel, E. M. Reinisch, T. Sueyoshi, G. Koller, S. Soubatch, M. G. Ramsey, P. Puschnig, F. S. Tautz, C. Kumpf
    Unexpected interplay of bonding height and energy level alignment at heteromolecular hybrid interfaces
    Nature Comm. 5, 3685 (2014).
  5. B. Stadtmüller, S. Schröder, F. C. Bocquet, C. Henneke, C. Kleimann, S. Soubatch, M. Willenbockel, B. Detlefs, J. Zegenhagen, T.-L. Lee, F. S. Tautz, C. Kumpf
    Adsorption height alignment at heteromolecular hybrid interfaces
    Phys. Rev. B – Rapid Comm. 89, 161407(R) (2014).
  6. B. Stadtmüller, C. Henneke, S. Soubatch, F. S. Tautz, C. Kumpf
    Tailoring metal-organic hybrid interfaces: Heteromolecular structures with varying stoichiometry on Ag(111)
    New J. Phys. 17, 023046 (2015).
  7. J. Sforzini, L. Nemec, T. Denig, B. Stadtmüller, T.-L. Lee, C. Kumpf, S. Soubatch, U. Starke, P. Rinke, V. Blum, F. C. Bocquet, F. S. Tautz
    Approaching ideal graphene: The structure of hydrogen-intercalated graphene on 6H-SiC(0001)
    Phys. Rev. Lett. 114, 106804 (2015).
  8. B. Stadtmüller, M. Willenbockel, S. Schröder, C. Kleimann, E. M. Reinisch, T. Ules, C. Kumpf
    Modification of the PTCDA-Ag(111) bond by formation of a hetero-organic bilayer film
    Phys. Rev. B 91, 155433 (2015).
  9. B. Stadtmüller, S. Schröder, C. Kumpf
    Heteromolecular metal-organic interfaces: Electronic and structural fingerprints of chemical bonding
    J. Electron. Spectrosc. Relat. Phenom. 204 A, 80 (2015).
  10. D. Schwarz, C. Henneke, C. Kumpf
    Towards functionalization of graphene: In situ study of the nucleation of copper-phtalocyanine on graphene
    New J. Phys. 18, 023034 (2016).