Strong and collimated terahertz radiation by super-Gaussian lasers

被引：44

作者：

Malik, Hitendra K. ^{[1
]}

Malik, Anil K. ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Dept Phys, Plasma Waves & Particle Accelerat Lab, New Delhi 110016, India

来源：

EPL | 2012年 / 100卷 / 04期

关键词：

GENERATION;

D O I：

10.1209/0295-5075/100/45001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose two super-Gaussian laser beams with frequency difference for obtaining more collimated terahertz (THz) radiation at a desired position based on their order/index and for enhancing the efficiency of the scheme by realizing stronger transient transverse current due to the spatial variation of their fields. For the laser intensity of similar to 10(14) W/cm(2) and along with the application of a periodic density structure, a resonant excitation of the THz radiation is achieved together with the efficiency of scheme as similar to 0.006. Copyright (C) EPLA, 2012

引用

页数：5

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