KDP Nonlinear Optics Laboratory spacer Institute of Quantum Electronics spacer Department of Physics spacer ETH-Logo

Time-resolved measurements using femtosecond laser pulses

Aim: To measure transient material properties (e.g. charge carrier lifetime or phonon decoherence) on a sub-picosecond time-scale Approach: Detection of the response of a sample as a function of delay time between two (pump-probe) or more (e.g. four-wave-mixing) incident laser pulses Impact: Picosecond time-resolution provides information that is usually averaged out in other measurement techniques.

overlap Frequency-doubled light of three infrared femtosecond laser pulses, generated in a DAST crystal. Left panel: No temporal overlap. Right panel: All pulses arrive at the same time; each pair of beams creates a visible spot between the individual ones (non-collinear second harmonic generation).

People involved: Brunner, Schneider

last change: 2006/04/13 by webmaster
A standards (XHTML/CSS) compliant web browser will display this page correctly.
Nonlinear Optics Lab production. All rights reserved.