DocumentCode :
1130579
Title :
Gain distribution, population densities and rotational temperature for the (00°1)-(10°0) rotation-vibration transitions in a flowing CO2 -N2 -He laser
Author :
Djeu, Nicholas ; Kan, Tehman ; Wolga, George J.
Author_Institution :
Cornell University, Ithaca, NY, USA
Volume :
4
Issue :
5
fYear :
1968
fDate :
5/1/1968 12:00:00 AM
Firstpage :
256
Lastpage :
260
Abstract :
Small-signal gain coefficients in a flowing amplifying mixture of CO2 -N2 -He were measured on 46 individual rotation-vibration transitions in the 
and 
branches of the 
band in CO2 . The resulting gain distribution as a function of 
was in agreement with a Boltzmann distribution of population among the rotational levels of each vibrational state. The physical parameters characterizing the CO2 laser levels were found to be 
; 
K where Ntotal is the number of CO2 molecules in the amplifying medium. The operating mixture was characterized by the following partial pressures and flow velocity: p(CO2 ) =0.65 torr; p(N2 ) =1.40 torr; p(He) =2.9 torr; v=192 cm/s.
and branches of the band in CO was in agreement with a Boltzmann distribution of population among the rotational levels of each vibrational state. The physical parameters characterizing the CO ; K where NKeywords :
Boltzmann distribution; Density measurement; Gain measurement; Helium; Iris; Laser theory; Laser transitions; Rotation measurement; Temperature distribution; Vibration measurement;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1968.1075112
Filename :
1075112
Link To Document :
