Direct nuclear pumped 1. 45-. mu. atomic carbon laser in mixtures of He-CO and He-CO/sub 2/
Journal Article
·
· Appl. Phys. Lett.; (United States)
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), Vol. 31:7
- Country of Publication:
- United States
- Language:
- English
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