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Proceedings Paper

Nonlinear effects in Faraday rotation and optical absorption in the magnetic semiconductor CdCr2Se4
Author(s): L. L. Golik; Z. E. Kun'kova
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Paper Abstract

Incident radiation intensity influence on spectral dependences of Faraday rotation and circularly polarized light absorption in single crystals CdCr2Se4 near the fundamental absorption edge were investigated. Strong nonlinear Faraday effect and nonlinear absorption were observed. The magnitudes of the effects are nonmonotonic function of the radiation intensity. The maximum increase of the Faraday rotation is equal to 100% of the linear effect value. The effects are explained by influence of photoexcited charge carriers on an excitonic resonance through screening of the internal electric fields existing in single crystals CdCr2Se4 as well as screening of the electron-hole interaction.

Paper Details

Date Published: 15 March 1999
PDF: 5 pages
Proc. SPIE 3734, ICONO '98: Fundamental Aspects of Laser-Matter Interaction and New Nonlinear Optical Materials and Physics of Low-Dimensional Structures, (15 March 1999); doi: 10.1117/12.342344
Show Author Affiliations
L. L. Golik, Institute of Radio Engineering and Electronics (Russia)
Z. E. Kun'kova, Institute of Radio Engineering and Electronics (Russia)


Published in SPIE Proceedings Vol. 3734:
ICONO '98: Fundamental Aspects of Laser-Matter Interaction and New Nonlinear Optical Materials and Physics of Low-Dimensional Structures
Konstantin N. Drabovich; V. I. Emelyanova; Vladimir A. Makarov, Editor(s)

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