Chinese Optics Letters, 2013, 11 (1): 011401, Published Online: Dec. 25, 2012
Intense broadband THz generation from femtosecond laser filamentation Download: 868次
140.3070 Infrared and far-infrared lasers 190.5530 Pulse propagation and temporal solitons 350.5400 Plasmas
Abstract
Broadband and energetic terahertz (THz) pulses can be remotely generated in air through filamentation. We review such THz generation and detection in femtosecond Ti-sapphire laser induced remote filaments. New results are presented on the direct relationship between THz generation in a two color filament and induced N2 fluorescence through population trapping during molecular alignment and revival in air. This further supports the new technique of remote THz detection in air through the sensitive measurement of N2 fluorescence.
Tie-Jun Wang, Shuai Yuan, Yanping Chen, See Leang. Intense broadband THz generation from femtosecond laser filamentation[J]. Chinese Optics Letters, 2013, 11(1): 011401.