Accession Number:

ADA088226

Title:

Advanced Concepts in Closed-Cycle Lasers.

Descriptive Note:

Final technical rept. 6 Dec 76-30 Sep 79,

Corporate Author:

SYSTEMS RESEARCH LABS INC DAYTON OH RESEARCH APPLICATIONS DIV

Personal Author(s):

Report Date:

1980-03-01

Pagination or Media Count:

187.0

Abstract:

The status of closed-cycle-laser technology is reviewed. The technology and performance of closed-cycle lasers in a recirculating loop and in a novel annular-flow-return configuration are discussed. High-repetition-rate laser operation has been achieved in high-pressure mixtures of ArXe, NeXe, HeXe, HeKr, HeAr, and CO2COXeHe. New laser lines at 5.13 and 5.44 microns have been observed for the He-Xe laser which generated a maximum average laser output power of 5.1 W at 9.5 kHz. Closed-cycle XeC1 laser operation employing a recirculating-loop configuration is discussed. Previously measured laser-seeding-agent photoabsorption cross sections and photoionization yields have been verified. Absolute measurements of UV emission from a CO spark source and measurements of UV emission from a CO2N2He capillary discharge have been made. A sliding spark and a dielectric-coupled discharge have been investigated as laser-preionizaton sources. Mercury-halide photolytic excitation studies have been made, and HgBr2 photoabsorption cross sections have been measured. Author

Subject Categories:

  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE