| Abstrakt: |
Ponderomotive force is a non -linear phenomena experienced by the charged particle when oscillating electromagnetic field of high intense laser interacts with a plasma. This nonlinear phenomena induced by a high frequency field such as generation of magnetic fields in laser irradiated plasmas [1], filamentation [2], parametric instabilities [3], interaction of pulsar radiation with its environment, kinetic processes in solar flares [4] and so on. In this work, we studied the force induced by profile modification in which the transverse component of the force evolve due to the intensity variation that give rise to the component of non linear oscillating current .This current led to the generation of THz radiation[5]. Results concerning the ponderomotive effects in different plasma are studied. We found that the ponderomotive force is dependent on collisional frequency and magnetic field. Collisional frequency cannot be neglected as it reduces the strength of ponderomotive force. So, we get different values for different plasmas viz. unmagnetised, collisional and magnetized plasma. [ABSTRACT FROM AUTHOR] |
