Bound states in the continuum through environmental design

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.

7 pages, 3 figures

References in corpus (3)

• Topological nature of bound states in the radiation continuum
• Perfect Single-Sided Radiation and Absorption without Mirrors
• Polarization state of radiation from a photonic crystal slab

Cited by in corpus (6)

• Topological photonic crystals: physics, designs and applications
• Bound States in the Continuum Based on the Total Internal Reflection of Bloch Waves
• Angle-Resolved Thermal Emission Spectroscopy Characterization of Non-Hermitian Meta-Crystals
• Angular Control of Anisotropy-Induced Bound States in the Continuum
• High-degeneracy points protected by site-permutation symmetries
• Surface Bound States in the Continuum in Dyakonov Structures