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Broad-band polarization-independent total absorption of electromagnetic waves by an overdense plasma

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 نشر من قبل Yury Bliokh P
 تاريخ النشر 2009
  مجال البحث فيزياء
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We have shown both experimentally and theoretically that polarization-independent broad-band absorption of electromagnetic waves by an overdense plasma, caused by surface plasmon-polaritons (SPP) excitation, can be achieved due to combination of two factors: a non-zero angle of incidence and a two-dimensional circular diffraction grating placed at a properly chosen distance in front of the plasma boundary. Direct detection of SPP has been achieved for the first time using a miniature antenna imbedded in the plasma.



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