Using symmetry bandgaps to create bound states in the continuum in 3D photonic crystals

Alexander Cerjan; Christina Jörg; Wladimir A. Benalcazar; Sachin Vaidya; Chia Wei Hsu; Georg von Freymann; Mikael C. Rechtsman

doi:10.1364/CLEO_QELS.2021.FTh1M.5

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper FTh1M.5
•https://doi.org/10.1364/CLEO_QELS.2021.FTh1M.5

Using symmetry bandgaps to create bound states in the continuum in 3D photonic crystals

Alexander Cerjan, Christina Jörg, Wladimir A. Benalcazar, Sachin Vaidya, Chia Wei Hsu, Georg von Freymann, and Mikael C. Rechtsman

CLEO: QELS_Fundamental Science 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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A. Cerjan, C. Jörg, W. A. Benalcazar, S. Vaidya, C. W. Hsu, G. von Freymann, and M. C. Rechtsman, "Using symmetry bandgaps to create bound states in the continuum in 3D photonic crystals," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper FTh1M.5.

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Abstract

We show that photonic-crystal environments can create symmetry-specific bandgaps that host a wide variety of symmetry-protected lines of bound states in the continuum, which we prove to be impossible in homogeneous environments.

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