Intense laser plasma interaction studies with density ramp profile
2019
An intense short pulse laser through dense plasma expels electrons and ions from the focal spot by the ponderomotive pressure and forms a channel, which acts as a propagation guide for the laser beam. Transport properties of electrons has been observed in the direction of laser propagation for different ramped profile plasma. Based on this analogy in the present paper we make an analytical investigation of intense laser plasma interaction studies with dense plasma. For the given values of plasma frequency and laser frequency, propagation of laser beam are characterized by dimensionless beam width parameter. The variation of beam width with distance of propagation has been obtained for typical values of parameters in ramped density plasma.An intense short pulse laser through dense plasma expels electrons and ions from the focal spot by the ponderomotive pressure and forms a channel, which acts as a propagation guide for the laser beam. Transport properties of electrons has been observed in the direction of laser propagation for different ramped profile plasma. Based on this analogy in the present paper we make an analytical investigation of intense laser plasma interaction studies with dense plasma. For the given values of plasma frequency and laser frequency, propagation of laser beam are characterized by dimensionless beam width parameter. The variation of beam width with distance of propagation has been obtained for typical values of parameters in ramped density plasma.
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