Time-resolved nonlinearities from nonsymmetric polar phonons in PbTiO3 and KNbO3 perovskites

被引：15

作者：

Albert, O ^{[1
]}

Duijser, M ^{[1
]}

Loulergue, JC ^{[1
]}

Etchepare, J ^{[1
]}

机构：

[1] UNIV METZ SUPELEC,CTR LORRAIN OPT & ELECTR SOLIDE,F-57078 METZ,FRANCE

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1996年 / 13卷 / 01期

关键词：

D O I：

10.1364/JOSAB.13.000029

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present time-resolved measurements of low-frequency nonsymmetric phonon polaritons driven impulsively in perovskite crystals. The definition of the phonon wave vector as a function of the excitation wavelength is addressed for the case of one and two pump beams. Results obtained with KNbO3 and PbTiO3 for B-2 and E symmetry modes, respectively, are presented, and the value of the lowest wave vector that can be reached for a specific wavelength of the pump beams is discussed. (C) 1996 Optical Society of America

引用

页码：29 / 33

页数：5

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