Terahertz wave generation from preformed air plasma

Tong Wu; Liangliang Zhang; Ji Zhao; Xiaoyan Xu; Cunlin Zhang

doi:10.1117/12.2193115

12 August 2015 Terahertz wave generation from preformed air plasma

Tong Wu, Liangliang Zhang, Ji Zhao, Xiaoyan Xu, Cunlin Zhang

Proceedings Volume 9625, 2015 International Conference on Optical Instruments and Technology: Terahertz Technologies and Applications; 962503 (2015) https://doi.org/10.1117/12.2193115
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

Abstract

Terahertz wave generation from air plasma induced by ultrashort laser pulses has been widely studied in the past decade. We report the study of terahertz wave generation from the laser induced plasma where there is a preformed air plasma. We found that the power of the terahertz wave generated by the main pump pulse decreases in the presence of the preformed plasma. The amount of the power drop increases with the power of pulse that generates preformed plasma. The result confirms the key role of tunneling ionization in the terahertz generation mechanism.

Citation Download Citation

Tong Wu, Liangliang Zhang, Ji Zhao, Xiaoyan Xu, and Cunlin Zhang "Terahertz wave generation from preformed air plasma", Proc. SPIE 9625, 2015 International Conference on Optical Instruments and Technology: Terahertz Technologies and Applications, 962503 (12 August 2015); https://doi.org/10.1117/12.2193115

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