An experimental study of the lifetimes of excited electronic states of NO 2
Abstract
The radiative lifetimes of the 2B 2 electronic state of NO 2 and its relationship with NO 2 pressure and excitation wavelength were measured. The fluorescence decay is exponential at NO 2 pressures below 5×10 -3 Torr, and bi-exponential at pressures higher than this value. The lifetimes are τ 1=21.6 μs and τ 2=3.4 μs at 1.4×10 -2 Torr. The apparently anomalously long lifetime of the 2B 2 state is interpreted using statistical analysis theory.
- Publication:
-
Chemical Physics Letters
- Pub Date:
- October 1989
- DOI:
- 10.1016/0009-2614(89)85082-1
- Bibcode:
- 1989CPL...162..140Z