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Thermal Excitation of Broadband and Long-range Surface Waves on SiO 2 Submicron Films

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 نشر من قبل Thomas Antoni
 تاريخ النشر 2017
  مجال البحث فيزياء
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We detect thermally excited surfaces waves on a submicron SiO 2 layer, including Zenneck and guided modes in addition to Surface Phonon Polaritons. The measurements show the existence of these hybrid thermal-electromagnetic waves from near-(2.7 $mu$m) to far-(11.2 $mu$m) infrared. Their propagation distances reach values on the order of the millimeter, several orders of magnitude larger than on semi-infinite systems. These two features, spectral broadness and long range propagation, make these waves good candidates for near-field applications both in optics and thermics due to their dual nature.

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