Demonstration of the first visible wavelength direct nuclear pumped laser

Details Demonstration of the first visible wavelength direct nuclear pumped laser Demonstration of the first visible wavelength direct nuclear pumped laser

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976phdt........58a&link_type=abstract

Ph.D. Thesis Illinois Univ., Urbana.

Other

Gas Lasers, Nuclear Reactions, Optical Pumping, Visibility, Wavelengths, Flux (Rate), Helium, Ion Motion, Laser Outputs, Mercury (Metal), Neutrons, Penning Discharge

Scientific paper

The first direct nuclear pumped laser to operate on a visible wavelength is described, whereas previous nuclear lasers have operated in the infrared. The Sandia Pulsed Reactor II was used as a high flux source of neutrons that pumped a helium-mercury gas laser via the high energy products of the B-10(n,alpha)Li-7 nuclear reaction. No other source of energy was utilized. Lasing was observed at 6,150 A. The thermal neutron flux threshold for lasing was approximately 1 x 10 to the 16th power n/sq cm/sec, and the laser output was continuous over the 400 micro sec operating time of the nuclear reactor. The laser signal appeared to increase linearly with thermal neutron flux.

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