scholarly journals Efficient laser-overdense plasma coupling via surface plasma waves and steady magnetic field generation

2011 ◽  
Vol 18 (10) ◽  
pp. 102701 ◽  
Author(s):  
A. Bigongiari ◽  
M. Raynaud ◽  
C. Riconda ◽  
A. Héron ◽  
A. Macchi
Keyword(s):  
Magnetic Field ◽  
Plasma Waves ◽  
Surface Plasma ◽  
Magnetic Field Generation ◽  
Field Generation ◽  
Surface Plasma Waves ◽  
Steady Magnetic Field ◽  
Overdense Plasma ◽  
Plasma Coupling

Steady magnetic field generation due to transient field ionization in ultrashort laser-solid interaction

1999 ◽  
Vol 59 (1) ◽  
pp. R36-R39 ◽  
Author(s):  
Andrea Macchi ◽  
Enrique Conejero Jarque ◽  
Dieter Bauer ◽  
Fulvio Cornolti ◽  
Luis Plaja
Keyword(s):  
Magnetic Field ◽  
Field Ionization ◽  
Transient Field ◽  
Magnetic Field Generation ◽  
Field Generation ◽  
Steady Magnetic Field ◽  
Ultrashort Laser

MAGNETIC FIELD GENERATION BY INTENSE LANGMUIR PLASMA WAVES

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-651-C7-652
Author(s):  
S. A. Bel'kov ◽  
V. N. Tsytovich
Keyword(s):  
Magnetic Field ◽  
Plasma Waves ◽  
Magnetic Field Generation ◽  
Field Generation

scholarly journals Parametric excitation of surface plasma waves over a metallic surface by laser in an external magnetic field

2018 ◽  
Vol 36 (1) ◽  
pp. 92-97
Author(s):  
Prashant Chauhan ◽  
Deepika Goel ◽  
Anshu Varshney ◽  
D. B. Singh ◽  
Vivek Sajal
Keyword(s):  
Magnetic Field ◽  
Growth Rate ◽  
Space Charge ◽  
Ponderomotive Force ◽  
Laser Energy ◽  
Incidence Angle ◽  
Plasma Waves ◽  
Metallic Surface ◽  
Surface Plasma ◽  
Surface Plasma Waves

AbstractEffects of external static magnetic field (applied in$\hat y$-direction) on resonant excitation of surface plasma waves (SPW) have been investigated over the metal free space interface. The high power laser$({\rm \omega} _0,\;\vec k_{0z})$is incident over the metal surface and exerts a ponderomotive force on the metal electrons in the skin layer. The ponderomotive force disturbs the quasi-neutrality of plasma which results into the excitation of space charge field at the frequency 2ω0. The electron density perturbation at frequency 2ω0driven by self-consistent space charge potential couples with the oscillatory velocity due to the seed SPW$({\rm \omega}, \;\vec k_z)$and produces nonlinear current to drive another counter propagating SPW$({\rm \omega} _1,\;\vec k_{1z})$at the phase matching conditions of frequency ω = ω1− 2ω0and wavenumber$\vec k_z = \vec k_{1z} - 2\vec k{}_{0z}$(by feedback mechanism). The parametric process becomes resonant at 2ω0≈ ωpand the maximum growth rate is achieved for an incidence angle of laser θ = 40°. The growth rate of the process reduces to half on increasing the magnetic field from 0.49 to 2.45 MG. The present study may be significant to the laser absorption experiments where surface rippling can strongly affect the laser energy absorption.

scholarly journals Surface plasma waves induced electron acceleration in a static magnetic field

2016 ◽  
Vol 34 (3) ◽  
pp. 474-479 ◽  
Author(s):  
D. Goel ◽  
P. Chauhan ◽  
A. Varshney ◽  
V. Sajal
Keyword(s):  
Magnetic Field ◽  
Static Magnetic Field ◽  
Equations Of Motion ◽  
Maximum Amplitude ◽  
Plasma Waves ◽  
Surface Plasma ◽  
Present Scheme ◽  
Surface Plasma Waves ◽  
Vacuum Interface ◽  
Interface Equations

AbstractThe acceleration of an electron beam by surface plasma waves (SPW), in the presence of external magnetic field parallel to surface and perpendicular to direction of propagation of SPW has been studied. This wave propagating along the$\hat z$-axis is excited using Kretschmann geometry, having maximum amplitude at the metal–vacuum interface. Equations of motion have been solved for electron energy and trajectory. The electron gains and retains energy in the form of cyclotron oscillations due to the combined effect of the static magnetic field and SPW field. The energy gained by the beam increases with the strength of magnetic field and laser intensity. In the present scheme, electron beams can achieve ~15 KeV energy for the SPW amplitudeA1= 1.6 × 1011V/m, plasma frequency ωp= 1.3 × 1016rad/s and cyclotron frequency ωc/ωp= 0.003.

scholarly journals Magnetic Field Generation in Plasma Waves Driven by Copropagating Intense Twisted Lasers

2018 ◽  
Vol 121 (14) ◽  
Author(s):  
Y. Shi ◽  
J. Vieira ◽  
R. M. G. M. Trines ◽  
R. Bingham ◽  
B. F. Shen ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Plasma Waves ◽  
Magnetic Field Generation ◽  
Field Generation
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