Infrared/ultraviolet double resonance in biacetyl vapour

Brian J. Orr*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


A novel infrared/ultraviolet double resonance (IRUVDR) technique, involving stepwise molecular absorption of pulsed 10.6μm CO2 and cw 441.6 nm HeCd laser radiation and detection of the resulting luminescence, is used to monitor energy transfer processes in biacetyl vapour. The infrared-induced variation in the intensity of biacetyl fluorescence at 460 nm is attributed to a specific hot band and subsequent vibrational equilibrium within the ground electronic state. Infrared fluorescence (6μm) and IRUVDR-induced phosphorescence (510 nm) have also been observed.

Original languageEnglish
Pages (from-to)446-450
Number of pages5
JournalChemical Physics Letters
Issue number3
Publication statusPublished - 1 Nov 1976
Externally publishedYes


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