Nanosecond optical response to pulsed uv excitation in KNbO3

被引：7

作者：

Ewart, M

Zgonik, M

Gunter, P

机构：

[1] Nonlinear Optics Laboratory, Institute of Quantum Electronics, Swiss Fed. Institute of Technology, CH-8093 Zürich, ETH Hönggerberg

来源：

OPTICS COMMUNICATIONS | 1997年 / 141卷 / 1-2期

关键词：

D O I：

10.1016/S0030-4018(97)00175-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Grating formation in pure KNbO3 crystals is observed after short pulse uv illumination which allows interband photoexcitation. The time resolved diffraction of 70 ps pulses at 532 nm on a nanosecond time scale is measured in geometries where an electro-optic contribution is significant and in geometries where it is forbidden by crystal symmetry. Diffraction efficiencies up to 10(-3) that build up in less than 0.1 ns, followed by a build up during 1 ns to efficiencies up to 3 x 10(-3) are observed. (C) 1997 Elsevier Science B.V.

引用

页码：99 / 106

页数：8

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