C2 creation,emission, and laser-induced fluorescence in flames and cold gases |
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| Authors: | J E M Goldsmith D Therese Biernacki Kearsley |
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| Institution: | (1) Combustion Research Facility, Sandia National Laboratories, 94551 Livermore, CA, USA;(2) Present address: Molecular Design Ltd., 2200 Route 10, Executive 10, 07054 Parsippany, NJ, USA |
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| Abstract: | We describe photochemical production of C2 in the upper (d
3 g) and the lower (a
3u) levels of the Swan-band transitions by 266 and 292-nm laser irradiation of flames and room-temperature flows of acetylene and ethylene. Topics treated include the spectroscopy of the Swan bands, lifetimes and quenching of the Swan-band emission, intensity dependences of the Swan-band emission in several environments, profiles of C2 in low-pressure hydrocarbon flames, and the affect of Swan-band emission on three-photon-excited fluorescence detection of atomic hydrogen in hydrocarbon flames.This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences |
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| Keywords: | 33 80 Wz 82 40 Py 82 50 Fv |
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