Enhancement of second harmonic generation in helical S-c* liquid crystals

被引：21
|
作者：
Copic, M
DrevensekOlenik, I
机构：
[1] UNIV LJUBLJANA,DEPT PHYS,LJUBLJANA 61000,SLOVENIA
[2] UNIV LJUBLJANA,JOZEF STEFAN INST,LJUBLJANA 61000,SLOVENIA
来源：
LIQUID CRYSTALS | 1996年 / 21卷 / 02期
关键词：
D O I：
10.1080/02678299608032828
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In a ferroelectric liquid crystal, a special type of phase-matching for optical second harmonic generation (SHG) is possible, where two counter-propagating fundamental waves create second harmonic waves at the edge of the selective reflection band. We compute the SHG intensity in such a situation and show that, at slight detuning from exact phase-matching, useful resonance enhancement can be obtained. A considerable amount of SHG also appears when the second harmonic frequency is in the reflection band, where the SHG wave is non-propagating.
引用
收藏
页码：233 / 236
页数：4
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