External magnetic field influence on properties of high-power laser-produced plasma

1996 ◽  
Author(s):  
J. Wol̸owski ◽  
A. Kasperczuk ◽  
T. Pisarczyk
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
High Power ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Produced Plasma ◽  
Field Influence

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.

Fabrication and absolute calibration of B-dot probe for magnetic field measurement on a high power laser facility

2020 ◽  
Vol 22 (8) ◽  
pp. 085201
Author(s):  
Longyu KUANG ◽  
Feibiao XUE ◽  
Longfei JING ◽  
Ruizhen YU ◽  
Huabing DU ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Power ◽  
Field Measurement ◽  
Absolute Calibration ◽  
Magnetic Field Measurement ◽  
High Power Laser ◽  
Power Laser ◽  
Dot Probe ◽  
Laser Facility

scholarly journals Resonant excitation of the upper hybrid wave by relativistic cross focusing of two laser beams

2009 ◽  
Vol 27 (3) ◽  
pp. 429-437 ◽  
Author(s):  
Gunjan Purohit ◽  
Prashant Chauhan ◽  
R.P. Sharma
Keyword(s):  
Magnetic Field ◽  
Static Magnetic Field ◽  
High Power ◽  
Resonant Excitation ◽  
Laser Beams ◽  
High Power Laser ◽  
Hybrid Wave ◽  
Power Laser ◽  
Plasma Parameters ◽  
Hybrid Frequency

AbstractThis article presents the resonant excitation of the upper hybrid wave (UHW) by cross focusing of two high power laser beams in a collisionless hot magnetoplasma; taking into account the relativistic nonlinearity. The electric vectors of the two beams are polarized along uniform static magnetic field and the beams propagate perpendicular to the static magnetic field. The resonant excitation of the UHW occurs when the frequency difference (FD) of the two laser beams and difference of their propagation vector satisfy the dispersion relation corresponding to the UHW. It has been observed that the power associated with the excited UHW, which depends on the background electron concentration, magnetic field and the intensity of the two laser beams, becomes drastically modified with the distance of propagation. The effect of the excited UHW at the FD on the acceleration of electrons has also been discussed. The amplitude of the UHW, excited by two high power laser beams and the electron energy are also calculated. This study is relevant in heating of plasma near the upper hybrid frequency as well as electron acceleration. The results are presented for typical laser plasma parameters.

Picosecond High Power Laser Systems And Picosecond Diagnostic Technique In Laser Produced Plasma

1979 ◽  
Author(s):  
Hiroto Kitroda ◽  
Hrutake Masuko ◽  
Shigeru Maekawa ◽  
Yoshiji Suzuki ◽  
Masaru Sugiyama ◽  
...  
Keyword(s):  
High Power ◽  
Diagnostic Technique ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Produced Plasma ◽  
Laser Systems

Evolution of fs high-power laser-produced plasma

1996 ◽  
Author(s):  
K. Shimizu ◽  
M. Kuwabara ◽  
K. Go ◽  
H. Takakuwa ◽  
H. Kitazawa ◽  
...  
Keyword(s):  
High Power ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Produced Plasma

High-power laser-produced plasma source for nanolithography

2004 ◽  
Author(s):  
Richard A. Forber ◽  
Celestino J. Gaeta ◽  
Harry Rieger ◽  
Heinz Siegert ◽  
Scott McLeod ◽  
...  
Keyword(s):  
High Power ◽  
Plasma Source ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Produced Plasma

scholarly journals Generation of Strong Magnetic Field with High-Power Laser

2019 ◽  
Vol 47 (9) ◽  
pp. 518
Author(s):  
Shinsuke FUJIOKA, ◽  
Hiroki MORITA ◽  
Kazuki MATSUO ◽  
King Fai Farley LAW ◽  
Chung LIU ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
High Power ◽  
High Power Laser ◽  
Power Laser

High-power laser-produced-plasma EUV source

2002 ◽  
Author(s):  
William P. Ballard ◽  
Luis J. Bernardez II ◽  
Robert E. Lafon ◽  
Richard J. M. Anderson ◽  
Yon E. Perras ◽  
...  
Keyword(s):  
High Power ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Produced Plasma
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