Record number :
Title of article :
Features of coherent laser beams interaction with condensed matter
Author/Authors :
O.Yu. Semchuk، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
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Abstract :
Some mechanisms of formation of laser-induced periodic surface and bulk structures in condensed matter are considered. Their influence on optical properties of semiconductors is investigated. It is shown that under action of coherent laser beams (CLBs) a grating of the refraction index arises in semiconductors. The models featuring this effect are offered. The relevant theoretical calculations confirming occurrence the new phenomenon — appearance of a grating of the refractive index in semiconductors in a field of CLBs — were carried out. It is shown that in ferromagnetic semiconductors (FMSC) with a laserinduced grating of the magnon temperature one probably deals with occurrence of the nonlinearity of the refraction index caused by the nonlinearity of FMSC magnetic susceptibility and one should observe oscillations of a refraction index, which will result in occurrence of complementary darkened areas. # 2004 Elsevier B.V. All rights reserved
Keywords :
Surface , refractive index , gratings , Coherent laser beams , Laser-induced structures , semiconductors
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
Link To Document :