The Nitrogen Ion Laser
Semi-annual technical rept. no. 1, 1 Jul-31 Dec 1975
TEXAS UNIV AT DALLAS RICHARDSON
Pagination or Media Count:
The characterization and thermal scaling of the nitrogen ion laser pumped by charge transfer from He3 is reported in this work. Intense laser emission in the violet at 427 nm has been observed and found to have a linewidth less than 0.3 A. The pumping ion, HE3, was produced by discharge of a fast- pulsed electron beam gun, APEX-1, into several atmospheres of a mixture of helium and nitrogen. Excitation current densities ranged from 1.1 to 2.5 sq cm at 1 MV over a 1 x 10 cm transverse geometry. Thermal scaling of the laser has been investigated and a strong inverse dependence of laser output on gas temperature was observed. Quasi-cw operation was achieved under these conditions suggesting that much longer output pulses might be obtained with an e-beam pulse of greater duration.
- Lasers and Masers