Collinear Terahertz Generation from LiNbO<sub>3</sub> Wafer Driven by an Ultrafast Yb-Laser

Kang Wang; Hongyang Li; Zhuorui Zheng; Yi Liu; Ye Tian; Liwei Song

doi:10.1109/JPHOT.2025.3530086

IEEE Photonics Journal (Jan 2025)

Collinear Terahertz Generation from LiNbO<sub>3</sub> Wafer Driven by an Ultrafast Yb-Laser

Kang Wang,
Hongyang Li,
Zhuorui Zheng,
Yi Liu,
Ye Tian,
Liwei Song

Affiliations

Kang Wang: School of Optical Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, China
Hongyang Li: State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
Zhuorui Zheng: State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
Yi Liu: College of Optical Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, China
Ye Tian: ORCiD; State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
Liwei Song: ORCiD; State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China

DOI: https://doi.org/10.1109/JPHOT.2025.3530086
Journal volume & issue: Vol. 17, no. 1
pp. 1 – 5

Abstract

Read online

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∼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.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

About the journal

Abstract

Keywords