Advanced Concepts in Closed-Cycle Lasers.
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 Ar:Xe, Ne:Xe, He:Xe, He:Kr, He:Ar, and CO2:CO:Xe:He. 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 CO2:N2:He 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1980
- Accession Number
- ADA088226
Entities
People
- Dennis F. Grosjean
- Robert A. Olson