Temperature dependence of vibrational relaxation from the upper vibrational levels of HF and DF

1980 ◽  
Vol 73 (7) ◽  
pp. 3198-3204 ◽  
Author(s):  
Roger L. Wilkins ◽  
Munson A. Kwok
Keyword(s):  
Temperature Dependence ◽  
Vibrational Relaxation ◽  
Vibrational Levels

Altitude dependence of the vibrational distribution of in the nightglow and the possible effects of vibrational excitation in the formation of O(1S)

1984 ◽  
Vol 62 (8) ◽  
pp. 780-788 ◽  
Author(s):  
I. C. McDade ◽  
E. J. Llewellyn ◽  
R. G. H. Greer ◽  
G. Witt
Keyword(s):  
Vibrational Relaxation ◽  
Vibrational Excitation ◽  
Relaxation Model ◽  
Terrestrial Atmosphere ◽  
Transfer Step ◽  
Vibrational Distribution ◽  
Altitude Dependence ◽  
Vibrational Levels ◽  
The Individual

A simple vibrational relaxation model that reproduces the observed vibrational distribution of the [Formula: see text] Herzberg II bands in the terrestrial nightglow is used to derive the altitude profiles of the fractional populations in the individual vibrational levels. Through consideration of these profiles it is shown that if [Formula: see text] is the Barth precursor of O(1S) in the nightglow then, at least in the terrestrial atmosphere, the higher vibrational levels appear to be more effective in the Barth transfer step than the lower vibrational levels.

Temperature dependence of vibrational relaxation in liquid H2O

2002 ◽  
Vol 117 (4) ◽  
pp. 1708-1713 ◽  
Author(s):  
A. J. Lock ◽  
H. J. Bakker
Keyword(s):  
Temperature Dependence ◽  
Vibrational Relaxation

scholarly journals The Schumann-Runge O2 Emission, Following Visible Multiphoton Excitation of NO2

1983 ◽  
Vol 1 (2) ◽  
pp. 113-130 ◽  
Author(s):  
Y. Matsumi ◽  
Y. Murasawa ◽  
K. Obi ◽  
I. Tanaka
Keyword(s):  
Excited State ◽  
Excitation Spectrum ◽  
Wavelength Range ◽  
Vibrational Relaxation ◽  
Multiphoton Excitation ◽  
Vibrationally Excited ◽  
Multiphoton Process ◽  
Vibrational Levels ◽  
Visible Laser ◽  
X State

The Schumann-Runge emission (B3Σu− − X3Σg−) of oxygen was observed in the wavelength range of 220–300 nm, when NO2 was irradiated with a focused visible laser (470–580 nm). The excitation spectrum of the emission also showed the Schumann-Runge transition from highly excited vibrational levels (v″ = 22–26) of the X state to the v′ = 1–3 levels of the B state of oxygen. The highly vibrationally excited O2 (Evib ≃ 30000 cm−1) is once produced through a multiphoton process of NO2 and then absorbs one more photon. The resulting excited state of O2 emits fluorescence in the UV region. Even at 40 torr of NO2, no rotational-vibrational relaxation in the B state was observed. The mechanism of the multiphoton process is discussed.

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