Lifetime of the benzene dimer in the S2 electronic state

Autor:	W. Radloff, H.-H. Ritze, Th. Freudenberg, Ingolf V. Hertel, V. Stert, Frank Noack
Rok vydání:	1996
Předmět:	Photon Dimer General Physics and Astronomy State (functional analysis) Laser Internal conversion (chemistry) law.invention chemistry.chemical_compound Monomer chemistry law Physical and Theoretical Chemistry Atomic physics Benzene Energy (signal processing)
Zdroj:	Chemical Physics Letters. 261:301-306
ISSN:	0009-2614
DOI:	10.1016/0009-2614(96)00972-4
Popis:	The lifetime of the benzene dimer in the S 2 state has been determined directly by pump-probe measurements with 160 fs laser pulses. The value of ≈ 40 fs obtained characterises the fast internal conversion to the S 0 as well as to the S 1 state. The probability of the S 2 to S 1 state conversion for the dimer is small but significant and a factor of about 2 larger than that for the benzene monomer. These results explain in a direct manner corresponding experiments with ns laser pulses where two-photon enhancement of the ion yield is observed only when the second photon has sufficient energy to ionise the S 1 state.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3cc3cf90ad4bd35eb8063d0dd2363073 https://doi.org/10.1016/0009-2614(96)00972-4 Zobrazit plný text záznamu Full Text from ScienceDirect