Bound States in the Continuum through Environmental Design

Alexander Cerjan, Chia Wei Hsu, and Mikael C. Rechtsman
Phys. Rev. Lett. 123, 023902 – Published 10 July 2019
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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.

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  • Received 21 January 2019
  • Revised 11 April 2019

DOI:https://doi.org/10.1103/PhysRevLett.123.023902

© 2019 American Physical Society

Physics Subject Headings (PhySH)

General Physics

Authors & Affiliations

Alexander Cerjan1,*, Chia Wei Hsu2, and Mikael C. Rechtsman1

  • 1Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
  • 2Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA

  • *awc19@psu.edu

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Issue

Vol. 123, Iss. 2 — 12 July 2019

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