Fano feature induced by a bound state in the continuum via resonant state expansion

Описание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1038/s41598-020-70654-2

Аннотация: We consider light scattering by an anisotropic defect layer embedded into anisotropic photonic crystal in the spectral vicinity of an optical bound state in the continuum (BIC). Using a resonant state expansion method we derive an analytic solution for reflection and transmission amplitudes. The analytic solution is constructed viaПоказать полностьюa perturbative approach with the BIC as the zeroth order approximation. The solution is found to describe the collapsing Fano feature in the spectral vicinity of the BIC. The findings are confirmed via comparison against direct numerical simulations with the Berreman transfer matrix method. © 2020, The Author(s).

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Издание

Журнал: Scientific Reports

Выпуск журнала: Vol. 10, Is. 1

Номера страниц: 13691

ISSN журнала: 20452322

Персоны

  • Pankin Pavel S. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Maksimov Dmitrii N. (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Chen Kuo-Ping (Natl Chiao Tung Univ, Inst Imaging & Biomed Photon, Tainan 71150, Taiwan)
  • Timofeev Ivan (Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)