Prof. Dr. Ulrich Höfer

University of Regensburg
Universitätsstraße 31
D-93040 Regensburg

Email: ulrich.hoefer@physik.uni-marburg.de

Expertise

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

University Education

1996Habilitation (Dr. rer. nat. habil.) in Experimental Physics, TU München, „Nonlinear optical spectroscopy of silicon surfaces“
1989Doctoral degree in Physics (Dr. rer. nat.), TU München, Dissertation on „High resolution photoelectron spectroscopy at surfaces: lineshapes, loss processes and applications“, thesis advisor: Eberhard Umbach
1985Diploma degree in Physics (Dipl. Phys.), TU München, supervisor: Dietrich Menzel

Professional Experience

1999-Professor (C4/W3) for Experimental Physics, Philipps-Universität Marburg
2022-Adjunct Professor, Department of Physics, University of Regensburg
2022-24Chairman of DPG Surface Science Division
2013-21Spokesman SFB 1083 „Structure and Dynamics of Internal Interfaces“
2007-09Dean of the Physics Department, Philipps-Universität Marburg
2003-07Managing Director, Material Sciences Center, Philipps-Universität Marburg
1996-99Lecturer/docent, Physik-Department, TU München
1992-99Group Leader, Surface Dynamics, Laser Chemistry Department (Karl Kompa), Max-Planck-Institut für Quantenoptik (MPQ), Garching/München
1990-91Visiting Scientist, IBM T. J. Watson Research Center, Yorktown Heights, New York (USA), Department of Physical Sciences, Laser Science (Tony Heinz)
1987-89Research Assistant, Physik-Department E20 (Dietrich Menzel), TU München
1985-87Manager Data Processing, Central-Molkerei Augsburg e.G.

Awards and Honours

2022ERC Synergy Grant
2015Fellow of the Japanese Society for the Promotion of Science (Japan)
2011Ikerbasque Research Professor (DIPC, San Sebastián, Basque Country, Spain)
2009Offer for a chair in Experimental Physics at the University of Würzburg (declined)
2006Fellow of the American Physical Society (USA)
1995Arnold-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). DOI: 10.1016/j.surfrep.2004.02.002
  2. M. Dürr, U. HöferDissociative adsorption of molecular hydrogen on silicon surfaces
    Surf. Sci. Rep. 61, 465 (2006). DOI: 10.1016/j.surfrep.2006.08.002
  3. J. Güdde, M. Rohleder, T. Meier, S. W. Koch, U. HöferTime-resolved investigation of coherently controlled electric currents at a metal surface
    Science 318, 1287 (2007).  DOI: 10.1126/science.1146764
  4. H. Schwalb, S. Sachs, M. Marks, A. Schöll, F. Reinert, E. Umbach, U. HöferElectron lifetime in a Shockley-type metal-organic interface state
    Phys. Rev. Lett. 101, 146801 (2008). DOI: 10.1103/PhysRevLett.101.146801
  5. 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). DOI: 10.1103/PhysRevLett.116.076801
  6. 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). DOI: 10.1038/s41586-018-0544-x
  7. 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). DOI: 10.1002/anie.201806777
  8. 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). DOI: 10.1126/science.abf3286
  9. R. Wallauer, R. Perea-Causin, L. Münster, S. Zajusch, S. Brehm, J. Güdde, K. Tanimura, K.-Q. Lin, R. Huber, E. Malic, U. Höfer
    Momentum-resolved observation of exciton formation dynamics in monolayer WS2
    Nano Lett. 21, 5867 (2021).  DOI: 10.1021/acs.nanolett.1c01839
  10. S. Ito, M. Schüler, M. Meierhofer, S. Schlauderer, J. Freudenstein, J. Reimann, D. Afanasiev, K. A. Kokh, O. E. Tereshchenko, J. Güdde, M. A. Sentef, U. Höfer and R. Huber
    Build-up and dephasing of Floquet-Bloch bands on subcycle timescales
    Nature 616, 696 (2023). DOI: 10.1038/s41586-023-05850-x