Controllable narrowband terahertz generation from air plasma induced by two-color laser pulse train

Xiaoyue Zhou; Yuchen Lin; Yi Chan; Fu Deng; Jingdi Zhang

doi:10.1117/12.2675396

4 October 2023 Controllable narrowband terahertz generation from air plasma induced by two-color laser pulse train

Xiaoyue Zhou, Yuchen Lin, Yi Chan, Fu Deng, Jingdi Zhang

Proceedings Volume 12683, Terahertz Emitters, Receivers, and Applications XIV; 126830L (2023) https://doi.org/10.1117/12.2675396
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

Significant progress has been made in the development of table-top terahertz (THz) radiation sources, and the two-color laser-induced air plasma method is leading the way. Its ultra-broad emission bandwidth and intense radiation make it a top contender. In this paper, we report the successful generation of narrowband THz radiation from air plasma induced by a two-color laser pulse train. Using a Michelson interferometer implemented with a delay stage and a wedge pair, we coherently controlled and fine-tuned the primary characteristics of the narrowband THz pulse, including the center wavelength and carrier-envelope phase (CEP), which was achieved by manipulating the delay stage and wedge pair displacement. Our work has demonstrated that air plasma is an exceptional THz emitter with outstanding tunability and has revealed a potential method for actively stabilizing the CEP of narrowband THz radiation.

Conference Presentation

Citation Download Citation

Xiaoyue Zhou, Yuchen Lin, Yi Chan, Fu Deng, and Jingdi Zhang "Controllable narrowband terahertz generation from air plasma induced by two-color laser pulse train", Proc. SPIE 12683, Terahertz Emitters, Receivers, and Applications XIV, 126830L (4 October 2023); https://doi.org/10.1117/12.2675396

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