Abstract
A terahertz beam imaging method was proposed that involves scanning a reflecting echelon with temporal-spatial mapping inversion based on self-developed translation-scan and rotation-scan temporal-spatial mapping (TTSM and RTSM) algorithms. The beam characteristics of a terahertz time-domain spectroscopy (TDS) system, such as its size, shape, and energy distribution, were obtained. Besides the weak terahertz beam emitted from a TDS system, this scheme is also suitable for imaging large-size terahertz or laser beams in time-domain systems where existing beam imaging is impractical.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Xuewen Wang, Jinpeng Yuan, Liantuan Xiao, Suotang Jia, and Lirong Wang
Opt. Lett. 48(2) 303-306 (2023)
K. Y. Kim, B. Yellampalle, A. J. Taylor, G. Rodriguez, and J. H. Glownia
Opt. Lett. 32(14) 1968-1970 (2007)
Weibo Cheng, Zhaohui Wang, Xiaolong Liu, Ya Cheng, and Pavel Polynkin
Opt. Lett. 48(3) 751-754 (2023)