Collinear Terahertz Generation from LiNbO3 Wafer Driven by an Ultrafast Yb-Laser

被引：0
|
作者：
Wang, Kang [1 ,2 ,3 ]
Li, Hongyang [2 ,3 ,4 ]
Zheng, Zhuorui [2 ,3 ,5 ]
Liu, Yi [6 ]
Tian, Ye [2 ,3 ]
Song, Liwei [2 ,3 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Shanghai 200093, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, CAS Ctr Excellence Ultraintense Laser Sci, Shanghai 201800, Peoples R China
[4] Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China
[5] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[6] Univ Shanghai Sci & Technol, Coll Opt Elect & Comp Engn, Shanghai 200093, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2025年 / 17卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Terahertz radiation; Crystals; Optical pulses; Optical pumping; Nonlinear optics; Laser pulses; Laser theory; Optical variables control; Optical refraction; Pump lasers; Terahertz source; lithium niobate wafer; ytterbium laser; collinear geometry; OPTICAL RECTIFICATION; THZ-PULSE; ENHANCEMENT;
D O I：
10.1109/JPHOT.2025.3530086
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose and experimentally demonstrate a terahertz (THz) source based on optical rectification in lithium niobate wafers driven by an ultrafast ytterbium laser. Terahertz pulses with a repetition of 10 kHz and a spectrum of 0.1 similar to 6 THz are generated via a collinear geometry. The phase-matching condition is analyzed and the effect of crystal thickness is investigated. Our study demonstrates a compact and stable source for terahertz spectroscopy and imaging applications.
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页数：5
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