Analytical Perspective for Bound States in the Continuum in Photonic Crystal Slabs

2013/12/31 by Yi Yang, Chao Peng, Yong Liang +2 · 4 citations
Engineering · Materials Science · Physics and Astronomy · #Bound state #Computer science #Optical Coatings and Gratings #Perspective (graphical) #Photonic Crystals and Applications #Photonic and Optical Devices #Photonic crystal #Physics #Quantum mechanics #physics.optics

paper · pdf · doi:10.1103/physrevlett.113.037401

published as Phys. Rev. Lett. 113, 037401 (2014) · 5 pages, 5 figures

arxiv created 2014/05/09 · openalex publication_date 2014/07/15 · arxiv updated 2014/07/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We investigate the formation of photonic bound states in the continuum (BICs) in photonic crystal slabs from an analytical perspective. Unlike the stationary at-Γ BICs which originate from the geometric symmetry, the tunable off-Γ BICs are due to the weighted destructive via the continuum interference in the vicinity of accidental symmetry when the majority of the radiation is precanceled. The symmetric compatible nature of the off-Γ BICs leads to a trapping of light that can be tuned through continuously varying the wave vector. With the analytical approach, we explain a reported experiment and predict the existence of a new BIC at an unrevealed symmetry.

Cited by

• Electrically Switchable Broadband Photonic Bound States in the Continuum
• Bound states in the continuum in symmetric and asymmetric photonic crystal slabs
• Light trapping above the light cone in a one-dimensional array of dielectric spheres
• Observation of phonon trapping in the continuum with topological charges

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