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Design of Graded Topological Resonator for Sensitivity Improvement

  • Amit Kumar Goyal
  • , Diptimayee Dash
  • , Jasmine Saini
  • , Yehia Massoud*
  • *Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    In this paper, a hyperbolic-graded topological nanophotonic resonator is proposed to excite topologically protected edge states (TES). The index grading is introduced to modify the dispersion characteristics and enhance the mode field confinement of TES. The optimized structure leads to the excitation of a TES at a 1521nm operating wavelength. Further, the structural capability of the refractive index sensor is demonstrated. The analytical results demonstrate a sensitivity of 1806 nm/RIU (with a refractive index range from 1.35 to 1.40). Thus, showing its potential to detect and sense various biochemical analytes accurately.

    Original languageEnglish
    Title of host publicationOptoelectronic Devices and Integration XII
    EditorsXuping Zhang, Baojun Li, Changyuan Yu, Xinliang Zhang
    PublisherSPIE
    ISBN (Electronic)9781510667778
    DOIs
    Publication statusPublished - 2023
    EventOptoelectronic Devices and Integration XII 2023 - Beijing, China
    Duration: 14-10-202316-10-2023

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume12764
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Conference

    ConferenceOptoelectronic Devices and Integration XII 2023
    Country/TerritoryChina
    CityBeijing
    Period14-10-2316-10-23

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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