量子电子学报 ›› 2023, Vol. 40 ›› Issue (2): 141-163.doi: 10.3969/j.issn.1007-5461.2023.02.001

• “太赫兹物理、器件与应用”专辑 • 上一篇    下一篇

太赫兹参量源研究进展

王泽城1 , 杨忠明2∗ , 张行愚2 , 范书振1 , 陈晓寒2 , 丛振华2 , 刘兆军2 , 秦增光2 , 明 娜1 , 郭全鑫1 , 郭丽媛1   

  1. ( 1 山东大学光学高等研究中心, 激光与红外系统集成技术教育部重点实验室, 山东 青岛 266237; 2 山东大学信息科学与工程学院, 山东省激光技术与应用重点实验室, 山东 青岛 266237 )
  • 收稿日期:2022-09-19 修回日期:2022-10-27 出版日期:2023-03-28 发布日期:2023-03-28
  • 通讯作者: E-mail: zhongming.yang@sdu.edu.cn E-mail:zhongming.yang@sdu.edu.cn
  • 作者简介:王泽城 ( 1994 - ), 河南驻马店人, 博士生, 主要从事太赫兹参量源、非线性光学方面的研究。 E-mail: 201920408@mail.sdu.edu.cn
  • 基金资助:
    国家自然科学基金 (12074222, 61775122), 山东省重点研发计划 (2019JMRH0111), 山东省自然科学基金 (ZR2017MF038)

Research progress of terahertz parametric sources

WANG Zecheng 1 , YANG Zhongming 2∗ , ZHANG Xingyu 2 , FAN Shuzhen 1 , CHEN Xiaohan 2 , CONG Zhenhua 2 , LIU Zhaojun 2 , QIN Zengguang 2 , MING Na 1 , GUO Quanxin 1 , GUO Liyuan 1   

  1. ( 1 Key Laboratory of Laser and Infrared System, Ministry of Education, Center for Optics Research and Engineering, Shandong University, Qingdao 266237, China; 2 Shandong Provincial Key Laboratory of Laser Technology and Application, School of Information Science and Engineering, Shandong University, Qingdao 266237, China )
  • Received:2022-09-19 Revised:2022-10-27 Published:2023-03-28 Online:2023-03-28

摘要: 太赫兹参量源是一种激光驱动的太赫兹辐射源, 它具有高相干性、可调谐、室温运转等优点。在简要 介绍太赫兹参量源的基本原理后, 重点总结了近年来国内外对太赫兹参量源的代表性研究成果, 主要包括: 1) 太 赫兹参量源中常用的几种非线性晶体, 包括铌酸锂、磷酸钛氧钾、砷酸钛氧钾、磷酸钛氧铷; 2) 大单脉冲能量 太赫兹参量源, 主要产生方法包括使用垂直表面出射结构、使用环形腔、增加非线性晶体损伤阈值等, 目前报 道的最大单脉冲能量达到 17 µJ; 3) 高平均功率太赫兹参量源, 主要产生方法包括使用半导体激光器侧面泵浦激 光器、兼顾提高泵浦光脉冲能量和脉冲重复频率等, 目前报道的最大平均功率为 367 µW; 4) 太赫兹参量源的理 论模拟, 主要包括以耦合波方程为基础的, 分别针对太赫兹参量产生器、种子注入式太赫兹参量产生器、内腔 泵浦与外腔泵浦太赫兹参量振荡器建立的理论模型。

关键词: 非线性光学, 受激电磁耦子散射, 太赫兹参量源, 非线性晶体, 耦合波方程

Abstract: Terahertz parametric source is a laser driven terahertz wave radiation source, which has many advantages such as high coherence, wide tunability and room temperature operation, etc. After a brief introduction to basic principle of terahertz parametric sources, this paper mainly summarizes the recent representative research results about terahertz parametric sources, including: 1) Commonly used nonlinear crystals including lithium niobate, potassium titanium phosphate, potassium titanyl arsenate, rubidium titanium phosphate; 2) Large pulse energy terahertz parametric sources. The main generation methods include using surface-emitted structure, using ring cavity, increasing the damage threshold of the nonlinearcrystal, etc. The largest reported terahertz energy reaches 17 µJ; 3) High average power terahertz parametric sources. The main generation methods include deploying laser diode side-pumped laser as the pumping source, balancing the increase of the pulse energy and pulse repetition rate simultaneously, etc. The highest terahertz average power reported reaches 367 µJ till now; 4) Theoretical simulation on different kinds of terahertz source structures. Mainly based on the coupled wave equations, the theoretical models for terahertz parametric generator, injection-seeded parametric generator, intracavity-pumped and extracavity-pumped terahertz parametric oscillators are introduced respectively.

Key words: nonlinear optics, stimulated polariton scattering, terahertz parametric source, nonlinear crystal, coupled wave equations

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