Project B5

Time-Resolved Nonlinear Optical Spectroscopy of Semiconductor Interfaces

Project B6

Time-Resolved Two-Photon Photoemission Studies of Interface Electron and Exciton Dynamics

Prof. Dr. Ulrich Höfer

Philipps-Universität Marburg

Department of Physics

Renthof 5, 35032 Marburg
Phone: +49 6421 28-24215
Fax: +49 6421 28-24218
Email: hoefer@physik.uni-marburg.de

Expertise

Experimental Physics, laser spectroscopy of surfaces and interfaces, ultrafast electron dynamics, adsorption on semiconductor surfaces

University Education

1996 Habilitation (Dr. rer. nat. habil.) in Experimental Physics, TU München, “Nonlinear optical spectroscopy of silicon surfaces”
1989 Doctoral degree in Physics (Dr. rer. nat.), TU München, Dissertation on “High resolution photoelectron spectroscopy at surfaces: lineshapes, loss processes and applications”, thesis advisor: Prof. E. Umbach
1985 Diploma degree in Physics (Dipl. Phys.), TU München, supervisor: Prof. D. Menzel
1978-85 Studies in Physics, Technische Universität (TU) München

Professional Experience

1999- Professor (C4/W3) for Experimental Physics, Philipps-Universität Marburg
1996-99 Lecturer/docent, Physik-Department, TU München
1992-99 Group Leader, Surface Dynamics, Laser Chemistry Department (Prof. K.-L. Kompa), Max-Planck-Institut für Quantenoptik (MPQ), Garching/München
1990-91 Visiting Scientist, IBM T. J. Watson Research Center, Yorktown Heights, New York (USA), Department of Physical Sciences, Laser Science (Dr. T. F. Heinz)
1987 Research Assistant, Physik-Department E20 (Prof. D. Menzel), TU München
1985-87 Manager Data Processing, Central-Molkerei Augsburg e.G.

Honours, Awards and other Proofs of Qualification

2021-24 Vice-Chairman/Chairman of DPG Surface Science Division
2015 Fellow of the Japanese Society for the Promotion of Science (Japan)
2014 Selection Committee Member for the Max Planck Research Award
2013-21 Spokesman SFB 1083 “Structure and Dynamics of Internal Interfaces”
2011 Ikerbasque Research Professor (Basque Country, Spain)
2009 Offer for a chair in Experimental Physics at the University of Würzburg (declined)
2007-09 Dean of the Physics Department, Philipps-Universität Marburg
2006 Guest Professor, I.S.I.R. (Sanken Institute), University of Osaka, Japan
2006 Fellow of the American Physical Society (USA)
2003-07 Managing Director, Material Sciences Center, Philipps-Universität Marburg
1999 Research Fellow, Institute for Chemical Research, RIKEN, Japan
1998 Adjunct Professor Institute for Quantum Electronics, TU Vienna, Austria
1995 Arnold-Sommerfeld-Prize of the Bavarian Academy of Sciences and Humanities

Selected Publications

  1. P.M. Echenique, R. Berndt, E.V. Chulkov, Th. Fauster, A. Goldmann, U. Höfer, Decay of electronic excitations at metal surfaces, Surf. Sci. Rep. 52, 219 (2004).
  2. M. Dürr, U. Höfer, Dissociative adsorption of molecular hydrogen on silicon surfaces, Surf. Sci. Rep. 61, 465 (2006).
  3. J. Güdde, M. Rohleder, T. Meier, S. W. Koch, U. Höfer,Time-resolved investigation of coherently controlled electric currents at a metal surface, Science 318, 1287 (2007).
  4. H. Schwalb, S. Sachs, M. Marks, A. Schöll, F. Reinert, E. Umbach, U. Höfer, Electron lifetime in a Shockley-type metal-organic interface state, Phys. Rev. Lett. 101, 146801 (2008).
  5. M. Reutzel, M. Lipponer, M. Dürr, U. Höfer, Binding Energy and Dissociation Barrier: Experimental Determination of the Key Parameters of the Potential Energy Curve of Diethyl Ether on Si(001), J. Phys. Chem. Lett. 6, 3971 (2015).
  6. K. Kuroda, J. Reimann, J. Güdde, U. Höfer, Generation of transient photocurrents in the topological surface state of Sb2Te3 by direct optical excitation with mid-infrared pulses, Phys. Rev. Lett. 116, 076801 (2016).
  7. J. Reimann, S. Schlauderer, C. P. Schmid, F. Langer, S. Baierl, K. A. Kokh, O. E. Tereshchenko, A. Kimura, C. Lange, J. Güdde, U. Höfer, R. Huber, Subcycle observation of lightwave-driven Dirac currents in a topological surface band, Nature 562, 396 (2018).
  8. G. Mette, A. Adamkiewicz, M. Reutzel, U. Koert, M. Dürr, U. Höfer, Controlling an SN2 reaction by electronic and vibrational excitation ‐ tip‐induced ether cleavage on Si(001), Angew. Chemie Int. Ed. 58, 3417 (2019).
  9. R. Wallauer, P. Marauhn, J. Reimann, S. Zoerb, F. Kraus, J. Güdde, M. Rohlfing, U. Höfer, Momentum-resolved observation of ultrafast interlayer transfer in MoS2, Phys. Rev. B 102, 102, 125417 (2020) – editor’s suggestion.
  10. R. Wallauer, M. Raths, K. Stallberg, L. Münster, D. Brandstetter, X. Yang, J. Güdde, P. Puschnig, S. Soubatch, C. Kumpf, F.C. Bocquet, F.S. Tautz, U. Höfer, Tracing orbital images on ultrafast time scales, Science 371, 1056 (2021).