Title :
Spectral characteristics of terahertz radiation from splitting femtosecond laser filaments
Author :
Zhelin Zhang ; Yanping Chen ; Liu Yang ; Xiaohui Yuan ; Feng Liu ; Min Chen ; Jianqiu Xu ; Zhengming Sheng ; Jie Zhang
Author_Institution :
Dept. of Phys. & Astron., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
We experimentally observe two independent terahertz sources with different peak frequencies emitted from a femtosecond laser pulse induced air filament when the filament splits into two sub-filaments. The frequency of terahertz waves from the trailing sub-filament is higher than that from the leading sub-filament.
Keywords :
lasers; light sources; terahertz waves; femtosecond laser filament splitting; femtosecond laser pulse induced air filament; independent terahertz sources; spectral characteristics; terahertz radiation; terahertz wave frequency; Iris; Laser beams; Laser theory; Lenses; Metals; Plasma density;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956219
