Influence of the oxidiser gas composition on the overtone generation efficiency of a supersonic cw chemical HF laser

Journal Article · Mon Aug 31 04:00:00 EDT 1998 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE1998V028N08ABEH001301· OSTI ID:21442578

Konkin, S V; Fedorov, Igor' A; Rebone, Vitalii K; Rotinyan, Mikhail A; Tret'yakov, Nikolai E; Galaev, I I; Moroz, M V; Tomashevich, N N ^[1]

---

1. Russian Science Centre 'Applied Chemistry', St Petersburg (Russian Federation)

An experimental investigation was made of the influence of the chemical composition of the oxidiser gas in an atomic-fluorine generator on the efficiency of generation of radiation representing the first overtone of the HF molecule in a self-contained supersonic cw chemical HF laser with the active medium 70 cm long. The optimal chemical composition was different for the fundamental and overtone transitions. A specific output energy of 84 J g{sup -1} at a specific mass flow rate of 0.13 g s{sup -1} cm{sup -2} through the nozzle array was achieved by optimisation of a linear three-mirror optical cavity at the 1.33 - 1.35 {mu}m wavelengths. The overtone radiation power generated in the whole of the active medium was 7.5 kW, corresponding to a 41% efficiency of energy conversion to an overtone. (lasers, active media)

• OSTI ID: 21442578
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 8 Vol. 28; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHEMICAL COMPOSITION
CHEMICAL LASERS
CONVERSION
EFFICIENCY
ELEMENTS
ENERGY CONVERSION
FLOW RATE
FLUORIDES
FLUORINE
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
LASER CAVITIES
LASERS
MIRRORS
MOLECULES
NONMETALS
NOZZLES
OPTIMIZATION
OXIDIZERS
WAVELENGTHS