MBI-Mitarbeiter - Persönliche Daten


  • Head of Department C3 "Femtosecond Spectroscopy on Solids"
  • Coordinator of Project 3.2 "Solids and Nanostructures: Electrons, Spins, and Phonons"
  • Coordinator of Project 3.3 "Transient Structures and Imaging with X-rays"


I am interested in ultrafast and nonlinear phenomena in condensed matter, in particular organic and inorganic solids and nanostructures. To this end, I generate and apply ultrashort pulses in a wide spectral range (THz to hard x-ray) to measure the nonequilibrium dynamics of elementary excitations in solids and the ultrafast structural dynamics of crystalline material. Most recent activities are two-dimensional spectroscopy in the THz frequency range (Figure: two phonon coherences in InSb) and femtosecond x-ray absorption experiments using table top high harmonic sources.

Curriculum vitae

1981-1988 Study of physics at the Technical University (TU) of Munich

1988-1991 PhD Work at TU Munich, Physics Department E11 (Prof. W. Kaiser)

1991 Graduation (Dr. rer. nat.) at the TU

1991-1993 Postdoctoral Researcher at the Physics Department E11, TU Munich

1993-1996 Postdoctoral Researcher at the Max-Born-Institute, Berlin

1997 Postdoctoral Researcher at Bell Laboratories (Lucent), Holmdel, NJ, USA

since 1997 Department head of C3 at the Max-Born-Institute, Berlin

1999 Habilitation at the Humboldt University Berlin

Aktuelle Highlights

Electric polarization in the macroscopic world and electrons moving at atomic scales

Wiggling atoms switch the electric polarization of crystals

Quantum Swing - a pendulum that moves forward and backwards at the same time

Amplification of Sound Waves at Extreme Frequencies

Hot means slow: Electron plasma oscillations tuned down with light

The longer the better: Optical long-wavelength pulses generate brilliant ultrashort hard x-ray flashes

MBI Publikationen

  1. Measuring optical frequencies in the 0 - 40 THz range with non-synchronized electro-optic sampling

    P. Gaal, M. B. Raschke, K. Reimann, M. Woerner

    Nature Photonics 1 (2007) 577-580 (see also: Probing the infrared - p602, Interview with Klaus Reimann)
  2. Phonon sidebands of intersubband absorption in AlGaN/GaN high-electron-mobility transistors

    Z. Wang, K. Reimann, M. Woerner, T. Elsaesser, D. Hofstetter, J. Hwang, W.J. Schaff, L.F. Eastman

    Physica E: Low-dimensional Systems and Nanostructures 32 (2006) 562-565
  3. Ultrafast hole-burning in intersubband absorption lines of GaN/AIN superlattices

    Z. Wang, K. Reimann, M. Woerner, T. Elsaesser, D. Hofstetter, E. Baumann, F. R. Giorgetta, H. Wu, W. J. Schaff, L. F. Eastman

    Applied Physics Letters 89 (2006) 151103/1-3
  4. Strain propagation in nanolayered perovskites probed by ultrafast X-ray diffraction

    von Korff Schmising, C., M. Bargheer, M. Kiel, N. Zhavoronkov, M. Woerner, T. Elsaesser, I. Vrejoiu, D. Hesse, M. Alexe

    Physical Review B 73 (2006) 212202/1-4
  5. Radiative coupling of intersubband transitions in GaAs/AlGaAs multiple quantum wells

    T. Shih, K. Reimann, M. Woerner, T. Elsaesser, I. Waldmüller, A. Knorr, R. Hey, K.H. Ploog

    Physica E: Low-dimensional Systems and Nanostructures 32 (2006) 262-265
  6. Quantum mechanical wavepacket transport in quantum cascade laser structures

    S.-C. Lee, F. Banit, M. Woerner, A. Wacker

    Physical Review B 73 (2006) 245320/1-6
  7. Nonlinear terahertz response of n-type GaAs

    P. Gaal, K. Reimann, M. Woerner, T. Elsaesser, R. Hey, K.H. Ploog

    Physical Review Letters 96 (2006) 187402/1-4
  8. Excitation mechanisms of coherent phonons unravelled by femtosecond X-ray diffraction

    M. Bargheer, N. Zhavoronkov, J.C. Woo, D.S. Kim, M. Woerner, T. Elsaesser

    physica status solidi (b) 243 (2006) 2389-2396
  9. Recent progress in ultrafast X-ray diffraction (invited minireview)

    M. Bargheer, N. Zhavoronkov, M. Woerner, T. Elsaesser

    ChemPhysChem 7 (2006) 783-792
  10. High repetition rate ultrafast x-ray source from the fs-laser produced plasma

    N. Zhavoronkov, von Korff Schmising, K., M. Bargheer, M. Woerner, T. Elsaesser, O. Klimo, J. Limpouch

    Journal de Physique IV 133 (2006) 1201-1203