The nature of some nonlinear optic coefficients in ferroelectrics

Chew, Khian Hooi and Tilley, D.R. and Webb, J.F. and Osman, J. (2001) The nature of some nonlinear optic coefficients in ferroelectrics. Ferroelectrics, 251 (1-4). pp. 117-121. ISSN 0015-0193, DOI

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Nonlinear optic coefficients that have been calculated through the resonant region in the far-infrared are looked at. It is possible to make such calculations by using a systematic expansion based on the Landau-Devonshire expression for the free energy together with the Landau-Khalatnikov dynamical equations. In this paper the coefficients considered have been calculated for an isotropic paraelectric phase. Two third order examples are presented: third harmonic generation and the d.c. Kerr effect. Experimental and practical implications include those for far-infrared sources and Terrahertz wave technology.

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Far infrared, Ferroelectric materials, Nonlinear optics, Films
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 02 Aug 2013 01:14
Last Modified: 27 Aug 2019 07:24

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