Total absorption of an electromagnetic wave by an overdense plasma
Bliokh, Yury P. · Felsteiner, Joshua · Slutsker, Yakov Z.
Original · EN
We show both theoretically and experimentally that an electromagnetic wave can be totally absorbed by an overdense plasma when a subwavelength diffraction grating is placed in front of the plasma surface. The absorption is due to dissipation of surface plasma waves (plasmons-polaritons) that have been resonantly excited by the evanescent component of the diffracted electromagnetic wave. The developed theoretical model allows one to determine the conditions for the total absorption.
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