Application of laser-induced fluorescence in an atmospheric-pressure boron-seeded flame
- Air Force Institute of Technology, Wright-Patterson AFB, Ohio 45433 (US)
Laser-induced fluorescence (LIF) has been applied to the detection of a variety of combustion species as well as to BO{sub 2} in low-pressure reacting flows. This paper reports the first known demonstration of LIF of BO{sub 2} in an atmospheric-pressure flame. BO{sub 2} is believed to be one of the key species in boron combustion chemistry. A CH{sub 4}/O{sub 2}/air premixed flame seeded with BCl{sub 3} was probed with a pulsed dye laser and the resulting fluorescence detected with an optical multichannel analyzer. Non-resonant LIF was produced in the A-X system of BO{sub 2} principally by pumping the 00{sup 0}0--00{sup 0}0 transition and observing the 00{sup 0}0--10{sup 0}0 transition although other combinations were also used. The spectra show a considerable redistribution of energy due to collisions in the flame. A two-dimensional relative fluorescence profile of the BO{sub 2} in the flame was also obtained.
- OSTI ID:
- 5649380
- Report Number(s):
- CONF-871147--
- Journal Information:
- AIP Conference Proceedings (American Institute of Physics) Conference Proceedings; (USA), Journal Name: AIP Conference Proceedings (American Institute of Physics) Conference Proceedings; (USA) Vol. 172:1; ISSN 0094-243X; ISSN APCPC
- Country of Publication:
- United States
- Language:
- English
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