Phase detection sensitivity enhancement of grating-coupled Surface Plasmon Resonance (SPR) sensor using non-zero azimuth angle incident light

Wen Kai Kuo, Chih Hao Chang, Chien-Jang Wu

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

    Abstract

    This study numerically and experimentally demonstrates the enhancement of phase detection sensitivity of a grating-coupled surface plasmon resonance (GCSPR) sensor by using incident light at a nonzero azimuth angle. Phase detection measurements were performed using an electro-optic heterodyne interferometer. The experimental results show that when the GCSPR sensor was rotated azimuthally by 0° and 58°, the phase detection sensitivities were approximately 3.2 ×10-7 RIU and 5.5×10-8 RIU, respectively. The nonzero azimuth angle was found to enhance the sensor sensitivity by a factor of 5.87 relative to the zero azimuth angle.

    Original languageEnglish
    Title of host publicationPlasmonics
    Subtitle of host publicationMetallic Nanostructures and Their Optical Properties X
    DOIs
    Publication statusPublished - 2012 Dec 1
    EventPlasmonics: Metallic Nanostructures and Their Optical Properties X - San Diego, CA, United States
    Duration: 2012 Aug 122012 Aug 16

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume8457
    ISSN (Print)0277-786X

    Other

    OtherPlasmonics: Metallic Nanostructures and Their Optical Properties X
    CountryUnited States
    CitySan Diego, CA
    Period2012/08/122012/08/16

    Keywords

    • Azimuth angle
    • Grating-coupled surface plasmon resonance
    • Heterodyne interferometer

    ASJC Scopus subject areas

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

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