Laser photoluminescence and photopredissociation of Rb2

Autor:	H. P. Broida, J. M. Brom
Rok vydání:	1974
Předmět:	Dye laser Photoluminescence Chemistry General Physics and Astronomy Laser Spectral line Ion law.invention law Torr Molecule Physical and Theoretical Chemistry Atomic physics Ground state
Zdroj:	The Journal of Chemical Physics. 61:982-987
ISSN:	1089-7690 0021-9606
Popis:	Laser‐photoluminescence studies of Rb2 indicate that the C 1Πu state of the molecule is strongly predissociated. Both fixed frequency ion lasers and a tunable cw dye laser have used been to excite the photoluminescence at pressures from 1 to 100 torr of metal vapor contained in a heat‐pipe oven. The photoluminescence spectra show that the A 1Σu+ and B 1Πu states also are populated following absorption by the C 1Πu state. Recombination collisions between Rb 52P, formed in the predissociation of Rb2, and Rb 52S are proposed to account for the A→X and B→X emission. A strongly pressure dependent quasicontinuum emission is observed in the 540–610 nm region. This emission is attributed to transfer from the C 1Πu state into an unidentified state followed by transitions to high‐lying vibrational and continuum levels of the ground state.
Databáze:	OpenAIRE
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