Enhancing terahertz radiation from femtosecond laser filaments using local gas density modulation

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
Haicheng Xiao ◽  
Shengfeng Wang ◽  
Yan Peng ◽  
Daniel M. Mittleman ◽  
Jiayu Zhao ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Terahertz Radiation ◽  
Gas Density ◽  
Density Modulation

Submilliwatt, short-pulse, terahertz radiation from femtosecond-laser irradiated InAs in a magnetic field

1998 ◽  
Author(s):  
N. Sarukura ◽  
H. Ohtake ◽  
S. Izumida ◽  
Zhenlin Liu ◽  
S. Ono ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Femtosecond Laser ◽  
Terahertz Radiation ◽  
Short Pulse

scholarly journals Enhanced terahertz radiation by an intense femtosecond laser field assisted with sub-cycle pulses

2019 ◽  
Vol 27 (5) ◽  
pp. 7751
Author(s):  
Xiao-Fang Shu ◽  
Cheng-Xin Yu ◽  
Jie Liu
Keyword(s):  
Femtosecond Laser ◽  
Terahertz Radiation ◽  
Laser Field

scholarly journals Enhancing the energy of terahertz radiation from plasma produced by intense femtosecond laser pulses

2013 ◽  
Vol 102 (19) ◽  
pp. 191106 ◽  
Author(s):  
Fazel Jahangiri ◽  
Masaki Hashida ◽  
Shigeki Tokita ◽  
Takeshi Nagashima ◽  
Masanori Hangyo ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Terahertz Radiation ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses

Anomalous power and spectrum dependence of terahertz radiation from femtosecond-laser-irradiated indium arsenide in high magnetic fields up to 14 T

2003 ◽  
Vol 82 (8) ◽  
pp. 1164-1166 ◽  
Author(s):  
Hideyuki Ohtake ◽  
Hidetoshi Murakami ◽  
Takayuki Yano ◽  
Shingo Ono ◽  
Nobuhiko Sarukura ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Femtosecond Laser ◽  
Indium Arsenide ◽  
Terahertz Radiation ◽  
High Magnetic Fields

scholarly journals Terahertz Radiation Source in Air Based on Bifilamentation of Femtosecond Laser Pulses

2007 ◽  
Vol 99 (13) ◽  
Author(s):  
Y. Liu ◽  
A. Houard ◽  
B. Prade ◽  
S. Akturk ◽  
A. Mysyrowicz ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Terahertz Radiation ◽  
Radiation Source ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses

scholarly journals Transition-Cherenkov radiation of terahertz generated by super-luminous ionization front in femtosecond laser filament

2010 ◽  
Vol 28 (3) ◽  
pp. 399-407 ◽  
Author(s):  
Guang-Yue Hu ◽  
Baifei Shen ◽  
An-Le Lei ◽  
Ru-Xin Li ◽  
Zhi-Zhan Xu
Keyword(s):  
Femtosecond Laser ◽  
Electric Field ◽  
Terahertz Radiation ◽  
High Frequency ◽  
Cherenkov Radiation ◽  
Radiation Spectrum ◽  
Ionization Front ◽  
Electron Current ◽  
Coherent Superposition ◽  
Light Speed

AbstractSuper-luminous ionization front achieved by using axicon as focus lens is proposed to improve the transition-Cherenkov radiation of terahertz emitted from a femtosecond laser filament in air. Benefitted from the better coherent superposition of radiation electric field generated by dipole-like electron current behind the ionization front, the terahertz radiation in far zone is enhanced by one order when the velocity of ionization front exceeds the light speed. Moreover, the radiation spectrum extends toward high frequency and covers the entire terahertz gap.

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