Optimum geometry of the THz-radiation source using femtosecond pulse irradiated InAs [100] in a magnetic field

2000 ◽  
Author(s):  
S. Ono ◽  
T. Tsukamoto ◽  
H. Ohtake ◽  
E. Kawahata ◽  
T. Yano ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Radiation Source ◽  
Femtosecond Pulse ◽  
Thz Radiation ◽  
Optimum Geometry

Development of Intense and Compact THz-Radiation Source Using Femtosecond-Laser Irradiated InAs Emitter in a High Magnetic Field

2000 ◽  
Vol 47 (4A) ◽  
pp. 609-614
Author(s):  
Hideyuki Ohtake ◽  
Shingo Ono ◽  
Masahiro Sakai ◽  
Eiji Kawahata ◽  
Toshimasa Kozeki ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Femtosecond Laser ◽  
High Magnetic Field ◽  
Radiation Source ◽  
Thz Radiation

THz-radiation Generation from an Intracavity Saturable Bragg Reflector in a Magnetic Field

1998 ◽  
Vol 37 (Part 2, No. 2A) ◽  
pp. L125-L126 ◽  
Author(s):  
Nobuhiko Sarukura ◽  
Hideyuki Ohtake ◽  
Zhenlin Liu ◽  
Taro Itatani ◽  
Takeyoshi Sugaya ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Bragg Reflector ◽  
Thz Radiation ◽  
Radiation Generation

High spectral purity chip-scale tunable THz radiation source

2021 ◽  
Author(s):  
Wenting Wang ◽  
Ping-Keng Lu ◽  
Abhinav Kumar Vinod ◽  
James McMillan ◽  
Mingbin Yu ◽  
...  
Keyword(s):  
Radiation Source ◽  
Thz Radiation ◽  
Spectral Purity

All-Solid-State, THz Radiation Source Using a Saturable Bragg Reflector in a Femtosecond Mode-Locked Laser

1997 ◽  
Vol 36 (Part 2, No. 5A) ◽  
pp. L560-L562 ◽  
Author(s):  
Nobuhiko Sarukura ◽  
Zhenlin Liu ◽  
Hideyuki Ohtake ◽  
Shinji Izumida ◽  
Takaya Yamanaka ◽  
...  
Keyword(s):  
Solid State ◽  
Radiation Source ◽  
Bragg Reflector ◽  
Thz Radiation ◽  
Mode Locked Laser

scholarly journals Interaction of high power laser beam with magnetized plasma and THz generation

2010 ◽  
Vol 28 (4) ◽  
pp. 531-537 ◽  
Author(s):  
R.P. Sharma ◽  
A. Monika ◽  
P. Sharma ◽  
P. Chauhan ◽  
A. Ji
Keyword(s):  
Magnetic Field ◽  
Laser Beam ◽  
High Power ◽  
Nonlinear Interaction ◽  
Difference Frequency ◽  
Thz Radiation ◽  
High Power Laser ◽  
Power Laser ◽  
Circularly Polarized ◽  
Paraxial Ray

AbstractThis paper presents an investigation of the excitation of a Tera hertz (THz) radiation by nonlinear interaction of a circularly polarized high power laser beam and density ripple in collisionless magneto plasma. The ponderomotive force due to the nonlinear interaction between the laser and density ripple generates a nonlinear current at a difference frequency. If the appropriate phase matching conditions are satisfied and the frequency of the ripple is appropriate, then this difference frequency can be brought in the THz range. Filamentation (self focusing) of a circularly polarized beam propagating along the direction of ambient magnetic field in plasma is first investigated within paraxial ray approximation. The beam gets focused when the initial power of the laser beam is greater than its critical power. Resulting localized beam couples with the pre-existing density ripple to produce a nonlinear current driving the THz radiation. Analytical expressions for the beam width of the laser beam, electric vector of the THz wave have been obtained. By changing the strength of the magnetic field, one can enhance or suppress the THz emission. For typical laser beam and plasma parameters with the incident laser power flux = 1014 W/cm2, laser beam radius (r0) = 40 µm, laser frequency (ω0) = 1014 rad/s and plasma density (n0) = 3 × 1018 cm−3, normalized ripple density amplitude (μ) = 0.3, the produced THz emission can be at the level of Giga watt in power.

Generation of THz Radiation from Resonant Absorption in Strained Multiple Quantum Wells in a Magnetic Field

2001 ◽  
Vol 40 (Part 2, No. 7A) ◽  
pp. L681-L683 ◽  
Author(s):  
Tze-An Liu ◽  
Kai-Feng Huang ◽  
Ci-Ling Pan ◽  
Shingo Ono ◽  
Hideyuki Ohtake ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Wells ◽  
Resonant Absorption ◽  
Multiple Quantum Wells ◽  
Thz Radiation ◽  
Multiple Quantum
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