Title :
Plasma density measurement along femtosecond laser filament via enhanced THz spectroscopy
Author :
Tie-Jun Wang ; Jingjing Ju ; Yingxia Wei ; Ruxin Li ; Zhizhan Xu ; See Leang Chin
Author_Institution :
State Key Lab. of High Field Laser Phys., Shanghai Inst. of Opt. & Fine Mech., Shanghai, China
Abstract :
We report on a longitudinally resolved measurement of plasma density along femtosecond laser filament in air via needlelike high-voltage DC electric field enhanced THz spectroscopy. Longitudinal distribution of plasma density of ~1015 cm-3 along laser filament has been successfully recorded.
Keywords :
high-speed optical techniques; plasma density; plasma diagnostics; plasma light propagation; terahertz wave spectra; femtosecond laser filament; longitudinally resolved measurement; needlelike high-voltage DC electric field enhanced THz spectroscopy; plasma density longitudinal distribution; plasma density measurement; Density measurement; Electric fields; Electrodes; Plasma density; Plasma measurements; Spectroscopy; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA