Effect of high energy ion irradiation on electrical and optical properties of organic nonlinear optical crystals

被引：7
|
作者：
Rao, PM [1 ]
Nagaraja, HS
Aithal, PS
Avasthi, DK
Sarma, A
机构：
[1] Mangalore Univ, Dept Phys, Mangalagangothri 574199, India
[2] Ctr Nucl Sci, New Delhi 110067, India
来源：
MATERIALS CHEMISTRY AND PHYSICS | 1998年 / 54卷 / 1-3期
关键词：
organic single crystals; nonlinear optical properties; ion irradiation;
D O I：
10.1016/S0254-0584(98)00106-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two new organic nonlinear single crystals viz. methyl p-hydroxy benzoate (MHB) and p-hydroxy acetophenone (HAP) are irradiated with swift heavy ions Ag 100 MeV and Si 50-100 MeV, from the 15 UD pelletron at NSC Delhi. Hydrogen depth profiling was carried out by using the ERDA technique. The effect of irradiation on the dielectric, nonlinear optical properties was investigated. A dramatic increase in the value of the dielectric constant was observed in both MHB and HAP. The dielectric constants increased by 10-13 times. The refractive index values were also increased. However the second harmonic genaration efficiency of these crystals was only marginally affected. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：147 / 150
页数：4
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