Highly efficient terahertz generation from periodically poled lithium niobate

被引：0
|
作者：
Li, Zhongyang [1 ]
Wang, Silei [1 ]
Wang, Mengtao [1 ]
Wang, Weishu [1 ]
机构：
[1] North China Univ Water Resources & Elect Power, Coll Elect Power, Zhengzhou 450045, Henan, Peoples R China
来源：
JOURNAL OF OPTICS-INDIA | 2019年 / 48卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Terahertz wave; Cascaded difference frequency generation; Quasi-phase-matching; DIFFERENCE-FREQUENCY-GENERATION; THZ-WAVE GENERATION; PARAMETRIC AMPLIFICATION; REFRACTIVE-INDEX; TEMPERATURE;
D O I：
10.1007/s12596-019-00531-3
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
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：6
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