Two-photon absorption in the collisionless gas phase: lifetimes of new vibrational levels in benzene

✍ Scribed by L. Wunsch; H.J. Neusser; E.W. Schlag

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 625 KB
• Volume: 32
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(75)85105-0

✦ Synopsis

Two-photoli photoselection

has been demonstr+d for a molecuie in the low pressure gas phase. The excitation has been used to populate new vibrational levels in benzene rnder isolated molecule renditions down to 0.1 torr.

The new states display unhsua! Sehatiour as wmpared.to the -tietimes of one-photon excited states. Most unexpectedly the lifetiqes of the strongest two-photon inducing mode ~~4 is longer than all other'bfetimes, inciuding that of the v-iiiationless 'B2u or&i 9 n. Sqme theoretical explar,ations are ocfered. ..