Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
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FELBE Free-Electron Laser: Status and Application for Time Resolved Spectroscopy ExperimentsWinnerl, S.; Stehr, D.; Drachenko, O.; Schneider, H.; Helm, M.; Seidel, W.; Michel, P.; Schneider, S.; Seidel, J.; Grafström, S.; Eng, L.-M.; Roch, T.; Strasser, G.; Maier, T.; Walther, M.
This paper reviews the basic properties of the infrared free-electron laser FELBE at the Forschungszentrum Rossendorf. At present FELBE delivers pulses with typical durations of 0.95 ps in the wavelength range 422 µm, which soon will be extended to 150 µm. Furthermore we report on recent experiments using FELBE, namely the study of phonon resonances in ferroelectric domains using a newly designed scattering scanning near-field optical microscope (s-SNOM), as well as pump-probe spectroscopy on doped semiconductor superlattices. The pump-probe signal reflects, apart from a component due to the bleaching of the interminiband transition, the temperature of the miniband electrons on a picosecond timescale.
Invited lecture (Conferences)
Joint 31st International Conference on Infrared and Millimter Waves and 14th International Conference on Terahertz Electronics, 18.-22.09.2006, Shanghai, China
Contribution to proceedings
Joint 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics, 18.-22.09.2006, Shanghai, China
Conference digest of the 2006 IRMMW-THz 2006: Piscataway, NJ : IEEE Operations Center, 1-4244-0399-5, 159-159