Wave packet dynamics on the repulsive potential surface of BaFCH3 excited at 745 nm

Autor:	V. Stert, H.-H. Ritze, W. Radloff, A. Gonzalez-Ureña, K. Gasmi
Rok vydání:	2002
Předmět:	Wavelength Chemistry Ab initio quantum chemistry methods Wave packet Excited state Time evolution General Physics and Astronomy Physical and Theoretical Chemistry Atomic physics Ground state Potential energy Excitation
Zdroj:	Chemical Physics Letters. 355:449-456
ISSN:	0009-2614
DOI:	10.1016/s0009-2614(02)00266-x
Popis:	We studied the time evolution of the wave packet formed by the excitation of the Ba⋯FCH 3 complex with a 120 fs laser pulse at 745 nm to its electronic A ′ state which is repulsive at the ground state geometry and decays to Ba and CH 3 F fragments. By applying probe pulses with different wavelengths of 400 and 267 nm, respectively, we observed strongly different time dependences of the pump–probe signals for the BaF + and Ba + ions determined by the Franck–Condon windows available in both cases. The experimental results are qualitatively confirmed by theoretical studies based on ab initio calculations of the corresponding potential energy surfaces.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5ffa9889f231432e1ffd4fcece34cdd0 https://doi.org/10.1016/s0009-2614(02)00266-x Zobrazit plný text záznamu Full Text from ScienceDirect