Investigation of optical inhomogeneities in chemical lasers

Investigation of optical inhomogeneities in chemical lasers

An experimental study was made of the changes in the refractive index ..delta..n of the active media of F/sub 2/+D/sub 2/+He (CO/sub 2/, SF/sub 6/) chemical lasers during stimulated emission. It was established that 80--90% of the energy was emitted by a laser when the active medium was optically ho...

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Veröffentlicht in:Sov. J. Quant. Electron. (Engl. Transl.); (United States) 1977-06, Vol.7 (6), p.752-754
Hauptverfasser: Zykov, L I, Kirillov, G A, Kormer, S B, Nikolaev, V D, Sukharev, Stanislav A
Format: Artikel
Sprache:eng
Schlagworte:
420300 - Engineering- Lasers- (-1989)
CHEMICAL LASERS
CRYOGENIC FLUIDS
DEUTERIUM
ELEMENTS
EMISSION
ENERGY-LEVEL TRANSITIONS
ENGINEERING
FLUIDS
FLUORINE
HALOGENS
HELIUM
HYDROGEN ISOTOPES
ISOTOPES
LASERS
LIGHT NUCLEI
NONMETALS
NUCLEI
ODD-ODD NUCLEI
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RARE GASES
REFRACTIVITY
STABLE ISOTOPES
STIMULATED EMISSION
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Beschreibung
Zusammenfassung:An experimental study was made of the changes in the refractive index ..delta..n of the active media of F/sub 2/+D/sub 2/+He (CO/sub 2/, SF/sub 6/) chemical lasers during stimulated emission. It was established that 80--90% of the energy was emitted by a laser when the active medium was optically homogeneous (vertical-bar..delta..nvertical-bar< or =2 x 10/sup -7/). The change in the refractive index at the end of a stimulated emission pulse did not exceed (0.7--1.5) x 10/sup -6/. This change was attributed to gasdynamic motion of the medium because of its nonuniform heating by the chemical reaction.
ISSN:0049-1748
2169-530X
DOI:10.1070/QE1977v007n06ABEH012889