Bound States in the Continuum through Environmental Design

Alexander Cerjan, Chia Wei Hsu, Mikael C. Rechtsman

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We propose a new paradigm for realizing bound states in the continuum (BICs) by engineering the environment of a system to control the number of available radiation channels. Using this method, we demonstrate that a photonic crystal slab embedded in a photonic crystal environment can exhibit both isolated points and lines of BICs in different regions of its Brillouin zone. Finally, we demonstrate that the intersection between a line of BICs and a line of leaky resonances can yield exceptional points connected by a bulk Fermi arc. The ability to design the environment of a system opens up a broad range of experimental possibilities for realizing BICs in three-dimensional geometries, such as in 3D-printed structures and the planar grain boundaries of self-assembled systems.

Original languageEnglish (US)
Article number023902
JournalPhysical review letters
Volume123
Issue number2
DOIs
StatePublished - Jul 10 2019

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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