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SUMMARY:Features of light coupling in low-loss 2D periodic structures supp
 orting phonon polariton
DTSTART;VALUE=DATE-TIME:20181205T110500Z
DTEND;VALUE=DATE-TIME:20181205T112500Z
DTSTAMP;VALUE=DATE-TIME:20260518T024234Z
UID:indico-contribution-11@indico.bitp.kiev.ua
DESCRIPTION:Speakers: Yuliia Mankovska (Taras Shevchenko National Universi
 ty of Kyiv)\nUnderstanding of light-matter interaction in a wide frequency
  range is an important fundamental problem with significant potential appl
 ied impacts. For instance\, Plasmonics is a rapidly developing field at th
 e boundary of physical optics and condensed matter physics with many prosp
 ective applications. However\, the use of plasmons is limited from a pract
 ical point of view because their spectral signature is in the visible and 
 near infrared region\, where metals have strong absorption leading to high
  losses. From this point of view\, the use of low-loss materials\, like po
 lar dielectrics\, is promising. Particularly\, in such materials surface p
 honon polaritons can be easily excited from the infrared to the terahertz 
 frequencies resulting in a strong coupling of light and optical phonons in
  the crystal.\nIn this report\, we studied features of light localization 
 in low loss 2D periodic structures formed by a polar crystal. Specifically
 \, we considered a periodic structure of silicon carbide nanodisks on a cr
 ystalline silicon substrate. We numerically solved Maxwell equations with 
 appropriate boundary conditions. The strong dependence of phonon polariton
  spectral resonances with the period of the array was theoretically reveal
 ed. Furthermore\, experimental reflectivity measurements on the fabricated
  structure confirmed these tendencies.\n\nhttps://indico.bitp.kiev.ua/even
 t/2/contributions/11/
LOCATION:
URL:https://indico.bitp.kiev.ua/event/2/contributions/11/
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