Dynamics of excitations of molecules driven by ultrashort laser pulses

Autor:	F. Chateauneuf, H. Abou-Rachid, R. K. Chaudhury, Thanh-Tung Nguyen-Dang
Rok vydání:	1994
Předmět:	Materials science business.industry Laser Pulse (physics) law.invention Chemical Dynamics Molecular dynamics Optics Multiphoton intrapulse interference phase scan Coherent control law Femtosecond business Excitation
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.165613
Popis:	Femtosecond laser pulses have been used to monitor chemical dynamics with the finest time- resolved details. They also offer the possibility of actually steering the molecular dynamics of a reactive system by controlling the laser pulses' parameters. Explorations of this possibility follow two main avenues: laser coherent control exploits phase coherence in weak-field excitation. Optimal control theory is being used to derive pulse shape functions which optimally favor certain objectives to be reached by the laser-induced molecular dynamics. Ideally, a complete non-perturbative characterization of the molecular response to a laser irradiation as an explicit functional of the laser pulse shape would allow for control scenarios to be inferred in a transparent manner. This complete characterization is now accessible for a number of simple molecular models with are reviewed in this communication.
Databáze:	OpenAIRE
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