Berlin 2001 – scientific programme

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Q: Quantenoptik

Q 5: Generation of Short Pulses I

Q 5.3: Talk

Monday, April 2, 2001, 16:15–16:30, H 2013

Femtosecond polarization pulse shaping — •T. Brixner and G. Gerber — Physikalisches Institut, Universität Würzburg, Am Hubland, 97074 Würzburg

We introduce a technique of computer-controlled femtosecond polarization pulse shaping where intensity, momentary frequency, and light polarization are varied as a function of time. Specifically, a liquid-crystal display (LCD) pulse shaper is used to modulate the degree of ellipticity as well as the orientation of the elliptical principal axes within a single laser pulse. Interferometric stability of the setup is not required. Complete pulse characterization is achieved by dual-channel spectral interferometry. The presented technology has a large range of applications, especially in the field of quantum control.