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Q: Quantenoptik und Photonik

Q 55: Nichtlineare optische Effekte und Lichtquellen II

Q 55.3: Vortrag

Mittwoch, 15. März 2006, 14:30–14:45, H14

Filling a spectral hole via self-phase modulation — •Andreas Präkelt, Matthias Wollenhaupt, Cristian Sarpe-Tudoran, Andreas Assion, and Thomas Baumert — Universität Kassel, Institut für Physik und CINSaT, Heinrich-Plett-Str. 40, D-34132 Kassel, Germany

Self-phase modulation is used in different nonlinear optical experiments, such as nonlinear femtosecond laser pulse compression techniques and transient absorption spectroscopy. We used a spatial light modulator to remove an interval of frequency components from the spectrum of a femtosecond laser pulse. Spectral redistribution effects, due to self-phase modulation were studied. We give a physical picture of the surprising effect that the removed frequency components are not only generated by self-phase modulation but even overshoot their neighboring frequencies in power spectral density [1].

[1] A. Präkelt, M. Wollenhaupt, C. Sarpe-Tudoran, A. Assion, T. Baumert, Appl. Phys. Lett. 87, 121113 (2005)