| Autor: |
Seonkyung Lee, Luque, Jorge, Reppel, Julie, Brown, Austin, Crosley, David R. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 7/15/2004, Vol. 121 Issue 3, p1373-1382, 10p, 6 Charts, 9 Graphs |
| Abstrakt: |
State-to-state rotational energy transfer (RET) rate coefficients for NO (A 2Σ+, v′=0, J=5.5, 11.5, 17.5) were measured for N2 and O2 at room temperature using a pump-probe method. The NO A 2Σ+ state is prepared by 226 nm light and the RET is monitored by fluorescence from the D 2Σ+ v′=0 state, following excitation by a time-delayed laser at ∼1.1 μm. Additionally, total collisional removal and final state distributions were measured exciting in the Q1+P21 band head, to simulate an NO laser-induced fluorescence atmospheric monitoring scheme. Time-resolved modeling is used to understand relaxation mechanisms and predict relaxation times in ambient air. H2O at atmospherically relevant concentrations does not affect the degree of RET in ambient air. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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