Study of the nonlinear transmission of Co{sup 2+}:ZnSe crystals at a wavelength of 1.54 {mu}m

The dependence of nonlinear transmission in Co{sup 2+}-doped ZnSe crystals at a wavelength of 1.54 {mu}m on the incident energy density is studied under the S{sub ZnSe}-S{sub CoSe}-L{sub Zn}-V equilibrium conditions. The obtained results suggest that the residual losses in the crystal at high incide...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2004-12, Vol.34 (12)
Main Authors: Il'ichev, Nikolai N, Mosaleva, Svetlana E, Shapkin, P V, Nasibov, A S
Format: Article
Language:English
Subjects:
ABSORPTION
CHALCOGENIDES
CHARGED PARTICLES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COBALT IONS
CROSS SECTIONS
CRYSTALS
DOPED MATERIALS
ENERGY DENSITY
IONS
MATERIALS
NONLINEAR PROBLEMS
SATURATION
SELENIDES
SELENIUM COMPOUNDS
SORPTION
TRANSMISSION
WAVELENGTHS
ZINC COMPOUNDS
ZINC SELENIDES
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Summary:The dependence of nonlinear transmission in Co{sup 2+}-doped ZnSe crystals at a wavelength of 1.54 {mu}m on the incident energy density is studied under the S{sub ZnSe}-S{sub CoSe}-L{sub Zn}-V equilibrium conditions. The obtained results suggest that the residual losses in the crystal at high incident energy densities are not related to absorption from the excited state but are caused by losses appearing probably during sample growing and doping. The saturation energy and the ground-state absorption cross section are determined E{sub s}=0.12 {+-} 0.03 J cm{sup -2} and {sigma}=(11 {+-} 2) x 10{sup -19} cm{sup 2}. (nonlinear optical phenomena)
ISSN:1063-7818
DOI:10.1070/QE2004V034N12ABEH002755