Abstract
A short-pulse laser having Gaussian radial intensity distribution and incident normally on a magnetized overdense plasma slab undergoes anomalous transmission. The laser induces a large oscillatory velocity on electrons, raising their mass and lowering the plasma frequency. The cyclotron resonance enhances this effect. Moreover, the ponderomotive force-driven electron cavitation lowers the plasma frequency further. These effects are most pronounced near the laser axis; hence, the central portion of the beam tunnels through the magnetized plasma slab, while marginal rays suffer reflection. The output beam thus has a smaller spot size. It also possesses a curvature in the wavefront that may help diagnostics.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
