Electronic Resource
Springer
International journal of infrared and millimeter waves
2 (1981), S. 943-986
ISSN:
1572-9559
Keywords:
Molecular spectroscopy
;
Stark tuned FIR lasers
;
Transferred Lamb dip
;
CH3OH new laser lines
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract An extensive theoretical and experimental analysis of the absorption and emission spectrum of a CH3OH FIR-laser excited by a conventional CO2 laser is presented. Particular interest is devoted to the Stark shifts of the pump and lasing lines and to the electric field dependence of the Fir-laser output of the various lines. The offsets with respect to the exciting radiation and the Stark shifts of the IR absorption (pump) lines are measured by means of the transferred Lamb dip technique. The theoretical behaviours of the Stark patterns are calculated for several choices of the quantum numbers and selection rules involved in the transitions. A large variety of experimental results are reported and compared to theory. Non-linear Stark shifts have been observed for the 37.5μm FIR laser line and for the IR-pump transitions excited by the 9-P(38) and 10-R(38) CO2 laser Lines. Line assignments are proposed and new FIR laser lines are reported.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01006941
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