TIME-RESOLVED PHASE DEFORMATION ANALYSIS OF INDUCED KERR NONLINEARITIES - APPLICATION TO PHONON MODE DETERMINATION

被引:7
作者
ALBERT, O
KIEN, DP
LOULERGUE, JC
ETCHEPARE, J
机构
[1] Laboratoire d'Optique Appliquée URA 1406 CNRS, Ecole Polytechnique-Ecole Nationale Supérieure de Techniques Avancées, Centre de l'Yvette
关键词
D O I
10.1016/0030-4018(94)00601-P
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Transient refractive index changes induced by a pump pulse are probed in the temporal domain with another pulse at a different wavelength. The phase modulation experienced by the probe beam is analysed by the measurement of its wavefront deformation in the far field, using spatial filters of various shapes. The technique is applied to the determination of low-frequency polar and non-polar phonons in crystals.
引用
收藏
页码:315 / 320
页数:6
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