Peculiarities of photorefractive response in planar waveguides fabricated by combined proton and copper exchange

被引：2
作者：
Kostritskii, S
机构：
[1] Physics Department, Kemerovo State University
来源：
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS | 1997年 / 6卷 / 03期
关键词：
LINBO3; WAVE-GUIDES; DEPENDENCE; CRYSTALS; SPECTRA; DEFECTS;
D O I：
10.1142/S0218863597000241
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work a photorefractive effect in proton-exchanged planar waveguides on LiNbO3 crystals is discussed. These waveguides are doped by copper with the aid of a new technique using the low-temperature ionic exchange. The experimental investigation has revealed the anomalous character of the photorefractive response in strongly doped waveguides. Photorefractive measurements are made over a wide range of H+, Cu+ and Cu2+ concentrations, altered by a series of oxidation treatments caused by back ionic exchange. Fabrication parameters allowing the realization of high photorefractive sensitivity either in visible or near infra-red ranges are identified.
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收藏
页码：321 / 331
页数：11
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