Optimally designed narrowband guided-mode resonance transmittance filters for label-free optical biosensor

Research output: Contribution to conferenceConference paperpeer-review

Abstract

We design a practical guided-mode resonance filter excited in the visible light region. We show that high background transmission over 90% at resonance wavelengths of 623 nm and 641 nm for TE and TM polarizations, respectively. Also, we investigate the sensitivity of the filter to incident angles, polarization and the refractive index of the surrounding environment. Our filter provides the resonant transmission spectral response with high sensitivities of 90 nm/RIU and 103 nm/RIU, and with a figure of merits of 1.93 and 2.13 for TM and TE polarizations, respectively. A GMR with such characteristics is expected to hold great promise a practical label-free refractive index biosensor.

Original languageEnglish
Title of host publicationOptical Components and Materials XVII
EditorsShibin Jiang, Michel J. F. Digonnet
PublisherSPIE
ISBN (Electronic)9781510633155
DOIs
StatePublished - 2020
EventOptical Components and Materials XVII 2020 - San Francisco, United States
Duration: 2020.02.42020.02.6

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11276
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Components and Materials XVII 2020
Country/TerritoryUnited States
CitySan Francisco
Period20.02.420.02.6

Keywords

  • Filter
  • Guided-mode resonance
  • Narrow bandwidth
  • Waveguide

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Computer Science & Information Systems
  • Mathematics
  • Engineering - Electrical & Electronic
  • Engineering - Petroleum
  • Data Science
  • Physics & Astronomy

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