Charge Transfer Pumping of the Helium Nitrogen Laser at Atmospheric Pressures in an Electrical Avalanche Discharge.
Technical rept. no. 1, 1 Jan-31 Oct 77,
TEXAS UNIV AT DALLAS RICHARDSON CENTER FOR QUANTUM ELECTRONICS
Pagination or Media Count:
An Atmospheric Electrical Avalanche AEA laser, stabilized by displacement current preionization, has been developed to support the study of the collisional pumping of the N2, B yields X, electronic transition by the kinetic step He2 N2 He yields N2B 2 Sigma sub u 3He. With proper preionization, the AEA laser has been operated at a PRF of 1 to 30 Hz in an avalanche mode at 100 to 200 Asq. cm. and Ep of 5 vcmtorr. At pressures from 1 to 8 atm an essentially uniform, 30 cu. cm. volume containing a high concentration of He2 has been produced. Resulting laser output pumped by the charge transfer reaction has exceeded 1MW peak power at 427.8 nm. in a 4 nsec pulse. Efficiency with respect to the electrical power flowing through the laser tube has exceeded 2 and output pulse energies have exceeded 1 of the input pulse of energy dissipated in the laser tube. Author
- Lasers and Masers