Dr. Michael Woerner
michael.woerner(at)mbi-berlin.de
+49 30 6392 1470
C3: Femtosecond Spectroscopy of Solids
Haus C, 1.2
Position
- 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"
Research
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
- Frequency upshift of the transverse optical phonon resonance in GaAs by femtosecond electron-hole excitation Physical Review Letters 125 (2020) 027401/1-5
- Terahertz driven amplification of coherent optical phonons in GaAs coupled to metallic dog-bone resonators Ultrafast Phenomena XXI 205 EPJ Web of Conferences (2019) 05007/1-3
- Millijoule few-cycle 5 μm source at 1 kHz repetition rate for generating broadband pulses from the mid- to far-infrared Ultrafast Phenomena XXI 205 EPJ Web of Conferences (2019) 01014/1-3
- Phonon driven charge dynamics in polycrystalline acetylsalicylic acid mapped by ultrafast x-ray diffraction Structural Dynamics 6 (2019) 014503/1-7
- Time-resolved photoluminescence from n-doped GaN/Al0.18Ga0.82N short-period superlattices probes carrier kinetics and long-term structural stability Journal of Applied Physics 125 (2019) 185705/1-7
- Soft-mode driven dynamics in ferroelectrics - new insight from ultrafast terahertz and x-ray experiments Ultrafast Phenomena XXI 205 EPJ Web of Conferences (2019) 04001/1-3
- Concepts and applications of nonlinear terahertz spectroscopy Morgan & Claypool Publishers, San Rafael (2019)
- Terahertz driven amplification of coherent optical phonons in GaAs coupled to a metasurface Physical Review Letters 122 (2019) 107402/1-6
- Recent advances in ultrafast X-ray sources Philosophical Transactions of the Royal Society of London Series A-Mathematical Physical and Engineering Sciences 377 (2019) 20180384/1-37
- Impact of piezoelectric fields on coherent zone-folded phonons in GaAs/AlAs superlattices Physical Review B 100 (2019) 121302(R)/1-6