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arXiv · 1901.07126

Bound states in the continuum through environmental design

Alexander Cerjan·Chia Wei Hsu·Mikael C. Rechtsman
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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 line of leaky resonance 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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Alexander Cerjan, Chia Wei Hsu, Mikael C. Rechtsman. 2019-01-22. Bound states in the continuum through environmental design. https://doi.org/10.1103/physrevlett.123.023902

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