DocumentCode :
1103099
Title :
A tunable far infrared laser
Author :
Danly, B.G. ; Evangelides, S.G. ; Temkin, R.J. ; Lax, B.
Author_Institution :
Massachusetts Institute of Technology, Cambridge, MA, USA
Volume :
20
Issue :
8
fYear :
1984
fDate :
8/1/1984 12:00:00 AM
Firstpage :
834
Lastpage :
837
Abstract :
A continuously tunable far infrared (FIR) laser has been demonstrated; experimental results are presented. A high-pressure (10-12 atm) continuously tunable CO2TE laser is used to pump Raman transitions in CH3F; the generation of continuously tunable radiation in the 250-300 \\mu m wavelength range is reported. Accurate frequency and bandwidth measurements have been made and the FIR bandwidth in superradiant emission is \\approx 4-5 GHz. Consequently, the generation of frequency tunable, subnanosecond pulses in the FIR appears feasible. The generation of tunable laser radiation from 150 to 1000 μm by stimulated Raman scattering should be possible using higher pump intensity and/or other gases.
Keywords :
Laser tuning; Pulsed lasers; Raman lasers; Submillimeter-wave lasers; Bandwidth; Finite impulse response filter; Frequency measurement; Laser excitation; Laser transitions; Pump lasers; Stimulated emission; Tellurium; Tunable circuits and devices; Wavelength measurement;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1984.1072485
Filename :
1072485
Link To Document :
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