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Author Kozlovskii, Vladimir I. ♦ Korostelin, Yurii V. ♦ Landman, Aleksandr I. ♦ Podmar'kov, Yu P. ♦ Frolov, M. P.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ABSORPTION ♦ CHROMIUM IONS ♦ CRYSTAL GROWTH ♦ DOPED MATERIALS ♦ HELIUM ♦ LASERS ♦ MAGNESIUM FLUORIDES ♦ MONOCRYSTALS ♦ OPTICAL PUMPING ♦ QUANTUM EFFICIENCY ♦ VAPORS ♦ ZINC SELENIDES ♦ ALKALINE EARTH METAL COMPOUNDS ♦ CHALCOGENIDES ♦ CHARGED PARTICLES ♦ CRYSTALS ♦ EFFICIENCY ♦ ELEMENTS ♦ FLUIDS ♦ FLUORIDES ♦ FLUORINE COMPOUNDS ♦ GASES ♦ HALIDES ♦ HALOGEN COMPOUNDS ♦ IONS ♦ MAGNESIUM COMPOUNDS ♦ MATERIALS ♦ NONMETALS ♦ PUMPING ♦ RARE GASES ♦ SELENIDES ♦ SELENIUM COMPOUNDS ♦ SORPTION ♦ ZINC COMPOUNDS
Abstract The lasing characteristics of a Cr{sup 2+} : ZnSe crystal grown by the method of free growth on a single-crystal seed using physical transport in helium are studied. The crystal was doped from a vapour phase during its growth. The achieved concentration of dopant Cr{sup 2+} ions (5x10{sup 18} cm{sup -3}) provides the absorption coefficient of 4.5 cm{sup -1} at the maximum of the pump band (1.78 {mu}m). Upon pumping by a pulsed Co : MgF{sub 2} laser at 1.67 {mu}m, the slope efficiency equal to 59 % with respect to the absorbed energy was achieved, which corresponds to the quantum efficiency 87 %. (lasers)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2003-05-31
Publisher Place United States
Journal Quantum Electronics
Volume Number 33
Issue Number 5


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