OH lifetime measurements of several K levels in the v′ = 1 manifold of the A 2Σ+ electronic state: Excitation via tunable UV laser
✍ Scribed by P. Hogan; D.D. Davis
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 325 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Reported are OH lifetime measurements of several different K' levels in the Y' = 1 manifold of tie A *X+ eIectronic state. 'These measurements are the fust to be reported using an excitation source which populated only sin& K' levels in the V' = 1 manifold. The excitation source in this cise consisted of a frequency doubled tumble dye Lser with a 0.25 A line width at = 2825 il. The dye laser itself was driven by a Q-switched frequency doubled neodymium glass laser, having a nominal output energy of 250 m3 per pulse. The arerage lifetime found for the K' levels, Cl. 1,2: and 4 was 687 + 24 ns. When corrected for quenchinp by Ha and A_r, the average value becomes 765 + 34 nn. * This author would like to ac'knowledge the National Science Foundation RAfjN Prosam (Grant %1-35338X), the CX-O&D) + H2 + 0H(2Kl). '-(2) matic Impact Assessment Program, Office of the Secretary; Department of Transportation, The Research Corporation. Since the OH yas formed uirder cw.coriditions it typiand the Center of Materials Research, University of Mary-tally would undergo many thousands of collisions beland for their support of this research. : . . fore being'samp!ed '.