High-temperature selective gasdynamic continuous CO/sub 2/ laser

Journal Article · Sun Oct 31 23:00:00 EST 1982 · High Temp. (Engl. Transl.); (United States)

OSTI ID:6382107

Egorov, V E; Ermachenko, V P; Kurochkin, Y V; Lazutkin, O N; Pakhomov, N Y; Pustogarov, A V; Shan'gin, O S; Ernst, V E

The efficiency of gasdynamic laser with selective excitation and mixing in a supersonic flow in a continuous operational regime up to stagnation temperature of 2500 /sup 0/K and nitrogen stagnation pressures 3 x 10/sup 6/ Pa is demonstrated experimentally. Values of the gain of a signal from a probing laser at wavelength 10.6 ..mu..m are obtained for different compositions of the mixture, degrees of expansion of the nozzle, and nitrogen stagnation temperaturres. The highest gain 1.0...1.5 m/sup -1/ is attained in mixtures containing He. The use of water vapor decreases the gain by a factor of 1.5. The gain in the binary mixture N/sub 2/:CO/sub 2/ has a positive value on the order of 0.6 m/sup -1/.

• Research Organization: Moscow
• OSTI ID: 6382107
• Journal Information: High Temp. (Engl. Transl.); (United States), Journal Name: High Temp. (Engl. Transl.); (United States) Vol. 20:3; ISSN HITEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
CARBON DIOXIDE LASERS
CHEMICAL COMPOSITION
EFFICIENCY
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUID FLOW
FLUIDS
GAIN
GAS LASERS
GASES
HELIUM
HYDROGEN COMPOUNDS
INFRARED RADIATION
LASERS
MEDIUM PRESSURE
NITROGEN
NONMETALS
NOZZLES
OPERATION
OXYGEN COMPOUNDS
RADIATIONS
RARE GASES
SUPERSONIC FLOW
VAPORS
VERY HIGH TEMPERATURE
WATER