High efficiency multikilojoule HF chemical lasers using an electron beam initiated low-pressure mixture of H/sub 2//F/sub 2//NF/sub 3/ or H/sub 2//F/sub 2//SF/sub 6/

Journal Article · Mon Jan 27 04:00:00 EST 1986 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.96576· OSTI ID:6176286

Kannari, F; Inagaki, H; Obara, M

High electrical and high chemical efficiencies were simultaneously achieved for the multikilojoule HF chemical laser using a Lambda-type (inclined type) electron beam initiation scheme. The optimum addition of NF/sub 3/ or SF/sub 6/ fluorine donor could increase both efficiencies and could reduce the total pressure of the laser gas mixture. The laser output obtained from the low-pressure mixture of H/sub 2//F/sub 2//O/sub 2//NF/sub 3/ = 30/208/62.5/70 (Torr) was 4.5 kJ in a 50-ns FWHM pulse width with an electrical laser efficiency of 226% and a chemical efficiency of 18.5%.

• Research Organization: Department of Electrical Engineering, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohokuku, Yokohama-shi, 223 Japan
• OSTI ID: 6176286
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 48:4; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CHEMICAL LASERS
CHEMICAL REACTION KINETICS
DATA
EFFICIENCY
ELECTRICAL PUMPING
ELECTRON BEAM PUMPING
ELEMENTS
EXPERIMENTAL DATA
FLUORIDES
FLUORINE
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HYDROFLUORIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
KINETICS
LASERS
NITROGEN COMPOUNDS
NITROGEN FLUORIDES
NONMETALS
NUMERICAL DATA
OXYGEN
PUMPING
REACTION KINETICS
SULFUR COMPOUNDS
SULFUR FLUORIDES