DocumentCode
1080356
Title
Large volume multiple path nuclear lasing of3He-Ar
Author
De Young, Russell J. ; Hohl, Frank
Author_Institution
Miami University, Oxford, OH, USA
Volume
16
Issue
10
fYear
1980
fDate
10/1/1980 12:00:00 AM
Firstpage
1114
Lastpage
1117
Abstract
Output power of 550 W has been achieved from a nuclear-pumped multiple path laser system containing3He-Ar by using the3He(n, p)3H nuclear reaction for power deposition. Lasing was achieved in Ar at 1790 nm. The complex beam profile was resolved by an InAs array detector. Lasing threshold thermal neutron fluxes as low as 
n/cm2. s have been demonstrated for 79.8 kPa (600 torr)3He- (2 percent)Ar mixtures with peak fluxes of 
n/cm2. s. Laser output was directly proportional to thermal neutron flux, and also increased proportionally with increasing3He pressure up to 292.6 kPa (2200 torr). The variation of the laser output power with the number of passes through the excited medium was found to peak at 5-7 passes.
n/cm2. s have been demonstrated for 79.8 kPa (600 torr)3He- (2 percent)Ar mixtures with peak fluxes of n/cm2. s. Laser output was directly proportional to thermal neutron flux, and also increased proportionally with increasing3He pressure up to 292.6 kPa (2200 torr). The variation of the laser output power with the number of passes through the excited medium was found to peak at 5-7 passes.Keywords
Dielectric radiation effects; Noble-gas lasers; Gas lasers; Laser beams; Laser excitation; Laser modes; NASA; Neutrons; Optical design; Power generation; Power lasers; Pump lasers;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1980.1070377
Filename
1070377
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