Direct nuclear pumped 1. 45-. mu. atomic carbon laser in mixtures of He-CO and He-CO/sub 2/

Journal Article · Sat Oct 01 00:00:00 EDT 1977 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.89720· OSTI ID:7220847

Prelas, M A; Akerman, M A; Boody, F P; Miley, G H

Direct nuclear pumping of the 1.45-..mu.. line in neutral carbon has been achieved using the /sup 10/B(n,..cap alpha..)/sup 7/Li reaction. Lasing was observed in mixtures of both He-CO and He-CO/sub 2/. The laser has the lowest neutron flux threshold to date, approx.4 x 10/sup 14/ n/cm/sup 2/ sec, and a 20-msec lasing time. Lasing occurred at pressures from 20--800 Torr He with partial pressures of CO and CO/sub 2/ from approx.1--21 mTorr. A delay, increasing to approx.5 msec for lower total pressures, was observed between the peak of the neutron pulse and the peak of the laser signal for mTorr partial pressures of CO/sub 2/, and for mTorr partial pressures of N/sub 2/-CO mixtures.

• Research Organization: University of Illinois, Urbana, Illinois 61801
• OSTI ID: 7220847
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 31:7; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CARBON DIOXIDE LASERS
CARBON MONOXIDE LASERS
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
GAS LASERS
HELIUM
LASER CAVITIES
LASERS
NONMETALS
NUCLEAR PUMPING
PRESSURE DEPENDENCE
RARE GASES