Abstract
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.
Original language | English |
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Pages (from-to) | 117-121 |
Journal | Ferroelectrics |
Volume | 251 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - 2001 |