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Paper   IPM / Physic / 8397
School of Physics
  Title:   Ponderomotive Acceleration of Injected Electrons in Tenuous Plasmas by Intense Laser Pulses
1.  V. Sazegari
2.  B. Shokri
  Status:   Published
  Journal: Phys. Plasmas
  Vol.:  13
  Year:  2006
  Pages:   113111
  Supported by:  IPM
The trapping and acceleration of an electron by forward ponderomotive force associated with intense short laser pulses, propagating in homogeneous rarefied plasmas is analyzed. This is done not by solving the motion equations but by energy conservation law and Lorentz transformation. This method is able to the treat the ponderomotive acceleration regardless of laser polarization. It is shown that the gain of acceleration increases linearly with the field strength of the laser and the relativistic factor of the group velocity of the laser in the plasma, while the minimum injection energy necessary for trapping the electron decreases with the laser field strength and increases slowly with the group velocity of the laser.

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