Simulation study on cascaded terahertz pulse generation in electro-optic crystals

被引：53

作者：

Hattori, Toshiaki ^{[1
]}

Takeuchi, Kousuke ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 305, Japan

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 13期

关键词：

D O I：

10.1364/OE.15.008076

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We studied cascaded optical rectification processes for intense terahertz (THz) pulse generation in electro-optic crystals using simulations based on one-dimensional coupled propagation equations of THz and optical fields. We found that under ideal conditions of perfect phase matching and no absorption, cascaded optical rectification processes produce intense THz pulses with efficiencies exceeding the Manley-Rowe limit. Large red shifting of the pump light spectrum was observed. Effects of finite optical and THz absorption, phase mismatches, and pulse width were examined using parameters of a ZnTe crystal pumped by 800 nm pulses. THz field enhancement by multiple pulse pumping was also studied. (C) 2007 Optical Society of America

引用

页码：8076 / 8093

页数：18

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