Strong coupling of the guided modes with BIC generation in graphene-based one-dimensional dielectric gratings

Yuchen Wang; Wei Qiu; Lu Chen; Chengchen Bi; Xiaoyun Jiang; Leiming Zhou; Yuwei Fang; Jigang Hu

doi:10.1117/12.2687502

28 November 2023 Strong coupling of the guided modes with BIC generation in graphene-based one-dimensional dielectric gratings

Yuchen Wang, Wei Qiu, Lu Chen, Chengchen Bi, Xiaoyun Jiang, Leiming Zhou, Yuwei Fang, Jigang Hu

Author Affiliations +

Proceedings Volume 12774, Plasmonics VII; 127740O (2023) https://doi.org/10.1117/12.2687502
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

Here we have investigated the strong coupling of the guided modes with different orders in graphene-based onedimensional (1D) dielectric grating structures in the visible wavelengths. We found that the guided mode resonances (GMR) with different orders can strongly couple with each other under the oblique incidence of light. Absorption spectral response exhibits a distinct spectral anti-crossing with the Rabi splitting up to 59.8 meV. Simulation results further show that the strong coupling of GMR modes enables the bound state in the continuum (BIC) in this coupled system, which can be flexibly modulated by adjusting structural parameters. The proposed hybrid grating structures will benefit the applications in on-chip optical filtering, sensing, and optoelectronic detection.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuchen Wang, Wei Qiu, Lu Chen, Chengchen Bi, Xiaoyun Jiang, Leiming Zhou, Yuwei Fang, and Jigang Hu "Strong coupling of the guided modes with BIC generation in graphene-based one-dimensional dielectric gratings", Proc. SPIE 12774, Plasmonics VII, 127740O (28 November 2023); https://doi.org/10.1117/12.2687502

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