Highly efficient terahertz generation from periodically poled lithium niobate

被引：0
作者：
Zhongyang Li
Silei Wang
Mengtao Wang
Weishu Wang
机构：
[1] North China University of Water Resources and Electric Power,College of Electric Power
来源：
Journal of Optics | 2019年 / 48卷
关键词：
Terahertz wave; Cascaded difference frequency generation; Quasi-phase-matching;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Terahertz (THz) generation from periodically poled lithium niobate with a quasi-phase-matching scheme based on cascaded difference frequency generation (DFG) processes is theoretically analyzed. The cascaded Stokes interaction processes and the cascaded anti-Stokes interaction processes are investigated from coupled wave equations. THz intensities and quantum conversion efficiencies are calculated. Compared with non-cascading DFG processes, THz intensities from 15-order cascading DFG processes are increased to 7.7. The quantum conversion efficiency of 390.85% in cascaded processes can be realized, which exceeds the Manley–Rowe limit.
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页码：166 / 171
页数：5
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