Author:
Il’ichev N.N.,Bufetova G.A.,Gulyamova E.S.,Pashinin P.P.,Sidorin A.V.,Tumorin V.V.,Kalinushkin V.P.,Gavrishchuk E.M.,Savin D.V.,Rodin S.A.,Ikonnikov V.B.
Abstract
Abstract
The influence of free electrons in Fe2+: ZnSe crystals on the nonlinear transmission of high-power laser radiation with a wavelength of 2940 nm at room and low temperatures is experimentally found. Fe2+ : ZnSe samples additionally doped with Al are used. The transmission of an Al : Fe : ZnSe sample with electron conduction in a strong (peak intensity about 4.6 MW cm−2) field is almost the same as in a weak field both at low and room temperatures. The absence of an increase in the transmission of this sample under the action of high-power radiation is explained by increasing absorption saturation intensity of Fe2+ at this wavelength due a decrease in the lifetime of the excited state of Fe2+. The decrease in the lifetime is related to the well-known Auger quenching of impurity luminescence in semiconductors by free electrons.
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Statistical and Nonlinear Physics,Electronic, Optical and Magnetic Materials
Cited by
11 articles.
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