Learning how to control vibrations in multimode molecules

Author

Weinacht, T.C. ; White, J.L. ; Bucksbaum, P.H.

Author_Institution

Michigan Univ., Ann Arbor, MI, USA

fYear

2000

fDate

12-12 May 2000

Firstpage

221

Abstract

Summary form only given. We have constructed an automated learning machine to study complex quantum systems. We have used this machine to learn how to selectively excite vibrational modes in a multimode molecule. By using a genetic algorithm to guide a computer controlled optical pulse shaper, we were able to discover what pulse shape would excite a single, selected C-H stretch mode in liquid methanol. The vibrations were excited through stimulated Raman scattering with an intense, shaped, ultrafast laser pulse and they were detected by spectrally analyzing the forward scattered radiation.

Keywords

optical pulse shaping; stimulated Raman scattering; vibrational states; automated learning machine; complex quantum systems; computer controlled optical pulse shaper; forward scattered radiation; genetic algorithm; intense shaped ultrafast laser pulse; liquid methanol; multimode molecules; selected C-H stretch mode; selectively excite; stimulated Raman scattering; vibration control; vibrational modes; Automatic control; Genetic algorithms; Laser excitation; Machine learning; Optical computing; Optical control; Optical pulse shaping; Raman scattering; Shape control; Vibration control;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2000. (QELS 2000). Technical Digest

Conference_Location

San Francisco, CA, USA

ISSN

1094-5695

Print_ISBN

1-55752-608-7

Type

conf

Filename

902018