(Peer-Reviewed) 0.35% THz pulse conversion efficiency achieved by Ti:sapphire femtosecond laser filamentation in argon at 1 kHz repetition rate
Zhiqiang Yu 余志强 ¹ ², Nan Zhang 张楠 ¹ ², Jianxin Wang 王建鑫 ¹ ², Zijie Dai 戴子杰 ¹ ², Cheng Gong 龚诚 ¹ ², Lie Lin 林列 ¹ ³, Lanjun Guo 郭兰军 ¹ ², Weiwei Liu 刘伟伟 ¹ ²
¹ Institute of Modern Optics, Nankai University, Tianjin 300350, China
中国 天津 南开大学现代光学研究所
² Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China
中国 天津 天津市微尺度光学信息技术科学重点实验室
³ Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Tianjin 300350, China
中国 天津 天津市光电传感器与传感网络技术重点实验室
Opto-Electronic Advances, 2022-07-27
Abstract
In this study, an optical setup for generating terahertz (THz) pulses through a two-color femtosecond laser filament was carefully designed to achieve a precise overlap of two-color laser pulses in space and time. β-barium borate (BBO), α-BBO, and a dual-wavelength plate were used to compensate the phase delay of the two-color lasers.
Tilting of α-BBO could further realize the precise spatial overlap of the two beams by counteracting the walk-off effect. The maximum output THz pulse energy reached 21 μJ in argon gas when using a commercial Ti:sapphire laser with a pulse energy of 6 mJ at a 1 kHz repetition rate. The corresponding conversion efficiency exceeded 0.35%.
Broadband ultrasound generator over fiber-optic tip for in vivo emotional stress modulation
Jiapu Li, Xinghua Liu, Zhuohua Xiao, Shengjiang Yang, Zhanfei Li, Xin Gui, Meng Shen, He Jiang, Xuelei Fu, Yiming Wang, Song Gong, Tuan Guo, Zhengying Li
Opto-Electronic Science
2025-07-25
Review for wireless communication technology based on digital encoding metasurfaces
Haojie Zhan, Manna Gu, Ying Tian, Huizhen Feng, Mingmin Zhu, Haomiao Zhou, Yongxing Jin, Ying Tang, Chenxia Li, Bo Fang, Zhi Hong, Xufeng Jing, Le Wang
Opto-Electronic Advances
2025-07-17
Multiphoton intravital microscopy in small animals of long-term mitochondrial dynamics based on super‐resolution radial fluctuations
Saeed Bohlooli Darian, Jeongmin Oh, Bjorn Paulson, Minju Cho, Globinna Kim, Eunyoung Tak, Inki Kim, Chan-Gi Pack, Jung-Man Namgoong, In-Jeoung Baek, Jun Ki Kim
Opto-Electronic Advances
2025-07-17
Non-volatile tunable multispectral compatible infrared camouflage based on the infrared radiation characteristics of Rosaceae plants
Xin Li, Xinye Liao, Junxiang Zeng, Zao Yi, Xin He, Jiagui Wu, Huan Chen, Zhaojian Zhang, Yang Yu, Zhengfu Zhang, Sha Huang, Junbo Yang
Opto-Electronic Advances
2025-07-09
CW laser damage of ceramics induced by air filament
Chuan Guo, Kai Li, Zelin Liu, Yuyang Chen, Junyang Xu, Zhou Li, Wenda Cui, Changqing Song, Cong Wang, Xianshi Jia, Ji'an Duan, Kai Han
Opto-Electronic Advances
2025-06-27
