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
Period12/8/1212/8/16

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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

Cite this

Kuo, W. K., Chang, C. H., & Wu, C-J. (2012). Phase detection sensitivity enhancement of grating-coupled Surface Plasmon Resonance (SPR) sensor using non-zero azimuth angle incident light. In Plasmonics: Metallic Nanostructures and Their Optical Properties X [845730] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8457). https://doi.org/10.1117/12.927748