Reciprocal-Space Engineering of Quasi-Bound States in the Continuum in Photonic Crystal Slabs for High-Q Microcavities

Il-Sug Chung, Alireza Taghizadeh

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The bound states in the continuum (BICs) in photonic crystal (PhC) slabs presume infinite periodicity in the inplane direction. Thus, a large number of unit cells are typically required to implement the BICs with a high quality (Q) factor. Here, we report on a method to engineer the reciprocal-space properties of BICs, which enables to keep the effect of the BIC phenomenon strong even for a microcavity of a few unit cells. For example, based on this method, a 3D microcavity of 4 unit cells can attain a Q factor of 18k. This allows for various BIC studies in a very compact platform, as well as novel functionalities for many important applications.
Original languageEnglish
Title of host publicationProceedings of the 2017 International Conference on Transparent Optical Networks
Number of pages3
PublisherIEEE
Publication date2017
Article number8024753
DOIs
Publication statusPublished - 2017
Event19th International Conference on Transparent Optical Networks - Girona, Spain
Duration: 2 Jul 20176 Jul 2017

Conference

Conference19th International Conference on Transparent Optical Networks
CountrySpain
CityGirona
Period02/07/201706/07/2017

Keywords

  • Bound state in the continuum
  • Microactivity
  • Photonic crystal

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