Presentation
5 October 2023 Slow light waveguide based on semiconductor valley photonic crystal
Satoshi Iwamoto, Hironobu Yoshimi, Kazuhiro Kuruma, Ryosuke Miyazaki, Yasutomo Ota
Author Affiliations +
Abstract
Valley photonic crystal (VPhC) is one of the photonic nanostructures that can host topologically protected edge states. The edge states enable efficient light guiding even under sharp corners. At a bearded interface consisting of two topologically distinct VPhCs, the edge state can be an in-gap slow light mode while keeping its robustness against sharp corners. The loss at sharp waveguide bends is largely suppressed for the topological slow light mode, compared to the non-topological slow light mode. Here, we discuss the design and the experimental demonstration of topological slow light waveguides in semiconductor VPhCs.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Satoshi Iwamoto, Hironobu Yoshimi, Kazuhiro Kuruma, Ryosuke Miyazaki, and Yasutomo Ota "Slow light waveguide based on semiconductor valley photonic crystal", Proc. SPIE PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI, PC126480F (5 October 2023); https://doi.org/10.1117/12.2676231
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KEYWORDS
Slow light

Waveguides

Semiconductors

Photonic crystals

Integrated photonics

Photonic integrated circuits

Photonic nanostructures

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