TY - JOUR
T1 - Point-Defect-Localized Bound States in the Continuum in Photonic Crystals and Structured Fibers
AU - Vaidya, Sachin
AU - Benalcazar, Wladimir A.
AU - Cerjan, Alexander
AU - Rechtsman, Mikael C.
N1 - Funding Information:
M. C. R. acknowledges support from the Office of Naval Research Multidisciplinary University Research Initiative Grant No. N00014-20-1-2325 on Robust Photonic Materials with High-Order Topological Protection as well as the Packard Foundation under Fellowship No. 2017-66821 and the Kaufman foundation under Grant No. KA2020-114794. W. A. B. is grateful for the support of the Eberly Postdoctoral Fellowship at the Pennsylvania State University. This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International, Inc., for the U.S. DOE’s National Nuclear Security Administration under Contract No. DE-NA-0003525. The views expressed in the article do not necessarily represent the views of the U.S. DOE or the United States Government. Computations for this research were performed on the Pennsylvania State University’s Institute for Computational and Data Sciences Roar supercomputer.
Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/7/9
Y1 - 2021/7/9
N2 - We show that point defects in two-dimensional photonic crystals can support bound states in the continuum (BICs). The mechanism of confinement is a symmetry mismatch between the defect mode and the Bloch modes of the photonic crystal. These BICs occur in the absence of band gaps and therefore provide an alternative mechanism to confine light. Furthermore, we show that such BICs can propagate in a fiber geometry and exhibit arbitrarily small group velocity which could serve as a platform for enhancing nonlinear effects and light-matter interactions in structured fibers.
AB - We show that point defects in two-dimensional photonic crystals can support bound states in the continuum (BICs). The mechanism of confinement is a symmetry mismatch between the defect mode and the Bloch modes of the photonic crystal. These BICs occur in the absence of band gaps and therefore provide an alternative mechanism to confine light. Furthermore, we show that such BICs can propagate in a fiber geometry and exhibit arbitrarily small group velocity which could serve as a platform for enhancing nonlinear effects and light-matter interactions in structured fibers.
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U2 - 10.1103/PhysRevLett.127.023605
DO - 10.1103/PhysRevLett.127.023605
M3 - Article
C2 - 34296895
AN - SCOPUS:85110101578
VL - 127
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 2
M1 - 023605
ER -