Terahertz radiation spectrum emitted from InAs under the existence of magnetic fields up to 27 T

2004 ◽  
Author(s):  
Hiroshi Takahashi ◽  
Alex Quema ◽  
Masahiro Goto ◽  
Shingo Ono ◽  
Nobuhiko Sarukura ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Terahertz Radiation ◽  
Radiation Spectrum

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 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.

Effect of Ultrafast Optical Pulses with Different Pulse Duration on the Terahertz Radiation Spectrum of n-Type InAs

2004 ◽  
Vol 43 (No. 6A) ◽  
pp. L746-L748
Author(s):  
Hiroshi Takahashi ◽  
Michael. P. Hasselbeck ◽  
Alex Quema ◽  
Masahiro Goto ◽  
Shingo Ono ◽  
...  
Keyword(s):  
Pulse Duration ◽  
Terahertz Radiation ◽  
Radiation Spectrum ◽  
Optical Pulses ◽  
Ultrafast Optical ◽  
Ultrafast Optical Pulses

Physical Origin of Magnetically Induced Periodic Structure Observed in Terahertz Radiation Spectrum Emitted from InAs

2004 ◽  
Vol 43 (No. 8A) ◽  
pp. L1017-L1019 ◽  
Author(s):  
Hiroshi Takahashi ◽  
Alex Quema ◽  
Masahiro Goto ◽  
Shingo Ono ◽  
Nobuhiko Sarukura ◽  
...  
Keyword(s):  
Periodic Structure ◽  
Terahertz Radiation ◽  
Radiation Spectrum ◽  
Physical Origin
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