Düsseldorf 2007 – scientific programme

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MO: Fachverband Molekülphysik

MO 61: Quantum Control I

MO 61.6: Talk

Friday, March 23, 2007, 11:45–12:00, 6F

Selective bond breaking in model dipeptides with temporally shaped laser pulses — •Tim Laarmann, Ihar Shchatsinin, Nick Zhavoronkov, Claus Peter Schulz, and Ingolf Volker Hertel — Max Born Institute, Max-Born-Str. 2A, 12489 Berlin

The control of photophysical processes with judiciously tailored femtosecond laser pulses is a cutting edge topic in modern laser science and might pave the way to optically controlled organic chemistry [1]. In this contribution we report on pulse-shaping experiments using closed-loop, optimal control feedback for selective bond breaking in Ac-Phe-NHMe. This molecule contains a -CO-NH-CHR-CO- moiety, the key structural element of peptides. Moreover, due to the two amino groups this system can be regarded as a model dipeptide. Perspectives for ''laser-induced protein sequencing (LIPS)'' using temporally shaped laser pulses will be discussed.

[1] T. Laarmann, I. Shchatsinin, A. Stalmashonak, M. Boyle, N. Zhavoronkov, J. Handt, R. Schmidt, C. P. Schulz, and I.V. Hertel, Physical Review Letters, in press (2006)