SPLITTING OF AN ELECTROMAGNETIC PULSE ON RESONANT REFLECTION FROM A PLASMA FILM

It is found theoretically that the temporal profile of a quasimonochro matic electromagnetic pulse is strongly distorted on reflection from a thin (on the wavelength scale) film of a plasma-like (semiconductor, metallic) medium under plasma-resonance conditions. It is shown that a n incident Gaussian pulse splits with time (completely or partially) i nto two reflected pulses, whose amplitudes can be controlled by varyin g the relationships among the parameters of the incident pulse and the film. (C) 1997 American Institute of Physics.