Sub-Wavelength Waveguide Michelson Interferometer Sensors

Sub-Wavelength Waveguide Michelson Interferometer Sensors

    Presenter(s)

    Kurugamage Nuwan Asela Perera

    Comments

    Presentation: 2:00-2:20, LTC Forum

    Description

    We experimentally demonstrated an asymmetric path enhanced Michelson interferometer sensor with subwavelength waveguides in a silicon-on-insulator (SOI) platform with bulk sensitivity ~775nm/RIU. Numerical simulations indicate feasibility to achieve high sensitivity ~70,000nm/RIU in optimized device geometries. Phase sensitivity is recorded as 72,678 rad/RIU. cm for biotin-streptavidin conjugate detection. By monitoring intensity changes in interferometers, our device can potentially reach a limit of detection of 1.1×10-6 RIU.

    Publication Date

    4-17-2024

    Project Designation

    Graduate Research

    Primary Advisor

    Swapnajit Chakravarty

    Primary Advisor's Department

    Electro-Optics and Photonics

    Keywords

    Stander Symposium, School of Engineering

    Institutional Learning Goals

    Scholarship

    Sub-Wavelength Waveguide Michelson Interferometer Sensors

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