Photorefractive response and optical damage of LiNbO3 optical waveguides produced by swift heavy ion irradiation

被引：0
|
作者：
J. Villarroel
M. Carrascosa
A. García-Cabañes
O. Caballero-Calero
M. Crespillo
J. Olivares
机构：
[1] Universidad Autónoma de Madrid,Departamento de Física de Materiales
[2] Universidad Autónoma de Madrid,Centro Microanálisis de Materiales CMAM
[3] Centro Superior de Investigaciones Científicas,undefined
来源：
Applied Physics B | 2009年 / 95卷
关键词：
42.70.Ln; 42.65.Wi; 42.70.Mp; 42.79.Gn; 42.88.+h;
D O I：
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学科分类号：
摘要：
The photorefractive behaviour of a novel type of optical waveguides fabricated in LiNbO3 by swift heavy ion irradiation is investigated. First, the electro-optic coefficient r33 of these guides that is crucial in the photorefractive effect is measured. Second, two complementary aspects of the photorefractive response are studied: (i) recording and light-induced and dark erasure of holographic gratings; (ii) optical beam degradation in single-beam configuration. The main photorefractive parameters, recording and erasing time constants, maximum refractive-index change and optical damage thresholds are determined.
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页码：429 / 433
页数：4
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