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Bibliographic Details
Main Authors: Tanimura, Yuta, Ishii, Yuki, Takata, Kenta, Uemura, Takahiro, Notomi, Masaya, Iwamoto, Satoshi, Ota, Yasutomo
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2503.09080
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Table of Contents:
  • The concept of bound states in the continuum (BIC) has been advancing light confinement technology in leaky environments. In this letter, we propose and numerically demonstrate a slow light waveguide based on a BIC mode. We considered a waveguide with a polymer core loaded on a plane slab, which supports a leaky guided mode coupled to the radiation continuum in the slab. We found that periodic modulation of the polymer core along the propagation direction can result in a high group index mode with a low propagation loss due to BIC confinement. The introduction of one-dimensional photonic crystals into the BIC waveguides will largely expand its functionality and applications in integrated photonics.