General Form for the Electron Distribution Function for an Inhomogeneous Fully Ionized and Magnetized Plasma Interacting with an Alternating Electric Field

1983 ◽  
Vol 23 (4) ◽  
pp. 399-409
Author(s):  
I. Burdujan ◽  
D. Zoler
Keyword(s):  
Distribution Function ◽  
Electric Field ◽  
Electron Distribution ◽  
Electron Distribution Function ◽  
Magnetized Plasma ◽  
Alternating Electric Field

scholarly journals Fokker-Planck simulations of ultrashort-pulse laser-plasma interactions

1992 ◽  
Vol 10 (3) ◽  
pp. 461-471 ◽  
Author(s):  
L. Drska ◽  
J. Limpouch ◽  
R. Liska
Keyword(s):  
Heat Flux ◽  
Distribution Function ◽  
Laser Radiation ◽  
Electric Field ◽  
Electron Distribution ◽  
Electron Distribution Function ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Ultrashort Pulse Laser ◽  
The Impact

The interaction of ultrashort laser pulses with a fully ionized plasma is investigated in the plane geometry by means of numerical simulation. The impact of the space oscillations in the amplitude of the laser electric field on the shape of the electron distribution function, on laser beam absorption, and on electron heat transport is demonstrated. Oscillations in the absorption rate of laser radiation with the minima coincident to the maxima of the laser electric field lead to a further decrease in the absorption of laser radiation. Heat flux in the direction of increasing temperature in the underdense region is caused by the modification of the electron distribution function and by the density gradient. A limitation of heat flux to the overdense plasma isobserved with the flux limiter in range 0.03–0.08, growing moderately with the intensity 1014–1016 W/cm2 of the incident 1.2-ps laser pulse.

Generalized Electron Cyclotron Resonance in Weakly Ionized Time-Varying Magnetoplasmas

1969 ◽  
Vol 24 (4) ◽  
pp. 555-559 ◽  
Author(s):  
Wolfgang Stiller ◽  
Günter Vojta
Keyword(s):  
Magnetic Field ◽  
Distribution Function ◽  
Cyclotron Resonance ◽  
Electron Distribution ◽  
Electron Cyclotron Resonance ◽  
Electron Distribution Function ◽  
Resonance Phenomenon ◽  
Alternating Electric Field ◽  
Special Cases ◽  
Weakly Ionized

Abstract The electron distribution function is calculated explicitly for a weakly ionized plasma under the action of an alternating electric field E = {0 , 0 , Eoz cos ω t} and a circularly polarized magnetic field BR = Bc{cos ωB t, sin ωB t, 0} rotating perpendicular to the a.c. field. Furthermore, a constant magnetic field B0 = {0, 0, B0} is taken into account. The isotropic part f0 of the electron distribution function which contains, in special cases, well-known standard distributions (distributions of Druyvensteyn, Davydov, Margenau, Allis, Fain, Gurevic) shows a resonance behaviour if the frequencies ω, ωc = (q/m) Bc , ω0 = (q/m) B0 , and ωB satisfy the relation ω= This can be understood as a generalized cyclotron resonance phenomenon.

Sign in / Sign up

Export Citation Format

Share Document