Nuclear pumped laser. II. Final contractor report, August 1975--August 1977
The first direct nuclear pumped laser using the He-2-(n,p) H-3 reaction is reported. Lasing took place on the 1.79 micrometers Ar I transition in a mixture of He-3-Ar at approximately 600 Torr total pressure. It was found that the electrically pulsed afterglow He-Ar laser had the same concentration profile as the nuclear pumped laser. As a result, nuclear lasing was also achieved in He-3-Xe (2.027 micrometers) and He-3-Kr (2.52 micrometers). Scaling of laser output with both thermal flux and total pressure as well as minority concentration has been completed. A peak output (He-3-Ar) of 3.7 watts has been achieved at a total pressure of 4 atm. Direct nuclear pumping of He-3-Ne has also been achieved. Nuclear pumping of a He-3-NF/sub 3/ mixture was attempted, lasing in FI at approximately 7000 A, without success, although the potential lasing transitions appeared in spontaneous emission. Both NF/sub 3/ and /sup 238/UF/sub 6/ appear to quench spontaneous emission when they constitute more than 1% of the gas mixture.
- Research Organization:
- Vanderbilt Univ., Nashville, Tenn. (USA). Dept. of Physics and Astronomy
- OSTI ID:
- 5265113
- Report Number(s):
- N-77-26479; NASA-CR-153292; VU-PL-7/77
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420300* -- Engineering-- Lasers-- (-1989)
ARGON
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DISPERSIONS
ELEMENTS
EVEN-ODD NUCLEI
GAS LASERS
HELIUM 3
HELIUM ISOTOPES
HYDROGEN ISOTOPES
ISOTOPES
KRYPTON
LASERS
LIGHT NUCLEI
MIXTURES
NONMETALS
NUCLEAR PUMPING
NUCLEI
ODD-EVEN NUCLEI
PRESSURE DEPENDENCE
RADIOISOTOPES
RARE GASES
STABLE ISOTOPES
TRITIUM
XENON
YEARS LIVING RADIOISOTOPES