Studies of lifetimes of rotationally cooled NO2 using time-resolved fluorescence excitation spectra

C. H. Chen; S. D. Kramer; D. W. Clark; M. G. Payne

doi:10.1016/0009-2614(79)80263-8

Studies of lifetimes of rotationally cooled NO₂ using time-resolved fluorescence excitation spectra

C. H. Chen, S. D. Kramer, D. W. Clark, M. G. Payne

Emeriti, Retired & In Memoriam (COSM)

Oak Ridge National Laboratory

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

A taunble, pulsed dye laser with output in the region of 5750 to 6000 Å was used to excite rotationally cooled NO₂ which was produced by expansion in conjunction with argon carrier gas through a supersonic nozzle. The resulting time-resolved fluorescence excitation spectra were used the lifetimes of various vibronic bands of NO₂ (²B₂). The lifetimes measured were in the region of 15 to 40 μs which were shorter than those obtained from cell experiments. For each individual excitation wavelength, only a single exponential decay was observed from very early times through 250 μs.

Original language	English
Pages (from-to)	419-424
Number of pages	6
Journal	Chemical Physics Letters
Volume	65
Issue number	3
DOIs	https://doi.org/10.1016/0009-2614(79)80263-8
State	Published - Sep 1 1979

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General Physics and Astronomy
Physical and Theoretical Chemistry

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abstract = "A taunble, pulsed dye laser with output in the region of 5750 to 6000 {\AA} was used to excite rotationally cooled NO2 which was produced by expansion in conjunction with argon carrier gas through a supersonic nozzle. The resulting time-resolved fluorescence excitation spectra were used the lifetimes of various vibronic bands of NO2 (2B2). The lifetimes measured were in the region of 15 to 40 μs which were shorter than those obtained from cell experiments. For each individual excitation wavelength, only a single exponential decay was observed from very early times through 250 μs.",

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AU - Clark, D. W.

AU - Payne, M. G.

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N2 - A taunble, pulsed dye laser with output in the region of 5750 to 6000 Å was used to excite rotationally cooled NO2 which was produced by expansion in conjunction with argon carrier gas through a supersonic nozzle. The resulting time-resolved fluorescence excitation spectra were used the lifetimes of various vibronic bands of NO2 (2B2). The lifetimes measured were in the region of 15 to 40 μs which were shorter than those obtained from cell experiments. For each individual excitation wavelength, only a single exponential decay was observed from very early times through 250 μs.

AB - A taunble, pulsed dye laser with output in the region of 5750 to 6000 Å was used to excite rotationally cooled NO2 which was produced by expansion in conjunction with argon carrier gas through a supersonic nozzle. The resulting time-resolved fluorescence excitation spectra were used the lifetimes of various vibronic bands of NO2 (2B2). The lifetimes measured were in the region of 15 to 40 μs which were shorter than those obtained from cell experiments. For each individual excitation wavelength, only a single exponential decay was observed from very early times through 250 μs.

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JO - Chemical Physics Letters

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ER -

Studies of lifetimes of rotationally cooled NO₂ using time-resolved fluorescence excitation spectra

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