Generation of 13.9-mJ Terahertz Radiation from Lithium Niobate Materials

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 23 vom: 14. Juni, Seite e2208947
1. Verfasser:	Wu, Xiaojun (VerfasserIn)
Weitere Verfasser:	Kong, Deyin, Hao, Sibo, Zeng, Yushan, Yu, Xieqiu, Zhang, Baolong, Dai, Mingcong, Liu, Shaojie, Wang, Jiaqi, Ren, Zejun, Chen, Sai, Sang, Jianhua, Wang, Kang, Zhang, Dongdong, Liu, Zhongkai, Gui, Jiayan, Yang, Xiaojun, Xu, Yi, Leng, Yuxin, Li, Yutong, Song, Liwei, Tian, Ye, Li, Ruxin
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2023
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article nonlinear optics terahertz generation tilted pulse-front technique ultrafast phenomena

Beschreibung
Zusammenfassung:	© 2023 Wiley-VCH GmbH. Extremely strong-field terahertz (THz) radiation in free space has compelling applications in nonequilibrium condensed matter state regulation, all-optical THz electron acceleration and manipulation, THz biological effects, etc. However, these practical applications are constrained by the absence of high-intensity, high-efficiency, high-beam-quality, and stable solid-state THz light sources. Here, the generation of single-cycle 13.9-mJ extreme THz pulses from cryogenically cooled lithium niobate crystals and a 1.2% energy conversion efficiency from 800 nm to THz are demonstrated experimentally using the tilted pulse-front technique driven by a home-built 30-fs, 1.2-Joule Ti:sapphire laser amplifier. The focused peak electric field strength is estimated to be 7.5 MV cm-1 . A record of 1.1-mJ THz single-pulse energy at a 450 mJ pump at room temperature is produced and observed that the self-phase modulation of the optical pump can induce THz saturation behavior from the crystals in the substantially nonlinear pump regime. This study lays the foundation for the generation of sub-Joule THz radiation from lithium niobate crystals and will inspire more innovations in extreme THz science and applications
Beschreibung:	Date Completed 08.06.2023 Date Revised 08.06.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202208947