Picosecond laser-induced fluorescence measurement of rotational energy transfer of OH A^2Σ^+ (v′ = 2) in atmospheric pressure flames
✍ Scribed by Nielsen, Tim ;Bormann, Frank ;Burrows, Michael ;Andresen, Peter
- Book ID
- 115346548
- Publisher
- The Optical Society
- Year
- 1997
- Tongue
- English
- Weight
- 455 KB
- Volume
- 36
- Category
- Article
- ISSN
- 1559-128X
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Time-resolved fluorescence measurements are reported for the OH radical in premixed, laminar atmospheric-pressure flames, following excitation of the u' = 1 and v' 30 levels of the A rE+ state. OH radicals were excited using a picosecond dye laser system based on the distributed feedback principle.
The collisional quenching of OH A'Z(u' = 1) by Hz0 was determined from laser-induced fluorescence measurements in the burned-gas region of stoichiometric H,/OJAr flames at low pressure ( 19 and 38 Torr). The collisional quenching was measured as a function of the initial laser-populated rotational l