Enhanced picosecond terahertz wave generation based on cascade effects in a terahertz parametric generator

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外文摘要：Enhanced terahertz wave generation via a Stokes cascade process has been demonstrated using picosecond pulse pumped terahertz parametric generation at 1 kHz repetition rate.Clear cascade saturation of terahertz output was observed,and the corresponding cascade-Stokes spectra were analyzed.The maximum terahertz wave average power was 22 μW under a pump power of 30 W,whereas the maximum power conversion efficiency was 8x 10-7 under a pump power of 21 W.The THz power fluctuation was measured to be about 1％in 20 min.This THz parametric source with a relatively stable output is suitable for a variety of practical applications.

外文关键词：

terahertz parametric generationstimulated polaritoncascade effectCLN crystal

作者：

张敬喜、王与烨、徐炳烽、陈锴、刘紫鲲、马鸿儒、徐德刚、姚建铨

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作者单位：

School of Precision Instruments and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China

Key Laboratory of Optoelectronic Information Technology(Ministry of Education),Tianjin University,Tianjin 300072,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaDaheng Atlas(Beijing)Laser Technology Co.Ltd

项目编号：

U22A20353U22A201236217518262275193

出版年：

2024

DOI：

10.1088/1674-1056/ad47b0

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(8)