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Underlying Subwavelength Aperture Architecture Drives the Optical Properties of Microcavity Surface Plasmon Resonance Sensors.
Amarie, Dragos; Mosavian, Nazanin; Waters, Elijah L; Stupack, Dwayne G.
Afiliação
  • Amarie D; Department of Physics and Astronomy, Georgia Southern University, Statesboro, GA 30560, USA.
  • Mosavian N; Optical Science and Engineering, University of New Mexico, Albuquerque, NM 87106, USA.
  • Waters EL; Department of Physics and Astronomy, Georgia Southern University, Statesboro, GA 30560, USA.
  • Stupack DG; Department of Reproductive Medicine, School of Medicine and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA.
Sensors (Basel) ; 20(17)2020 Aug 30.
Article em En | MEDLINE | ID: mdl-32872658
ABSTRACT
Microcavity surface plasmon resonance sensors (MSPRSs) develop out of the classic surface plasmon resonance technologies and aim at producing novel lab-on-a-chip devices. MSPRSs generate a series of spectral resonances sensitive to minute changes in the refractive index. Related sensitivity studies and biosensing applications are published elsewhere. The goal of this work is to test the hypothesis that MSPRS resonances are standing surface plasmon waves excited at the surface of the sensor that decay back into propagating photons. Their optical properties (mean wavelength, peak width, and peak intensity) appear highly dependent on the internal morphology of the sensor and the underlying subwavelength aperture architecture in particular. Numerous optical experiments were designed to investigate trends that confirm this hypothesis. An extensive study of prior works was supportive of our findings and interpretations. A complete understanding of those mechanisms and parameters driving the formations of the MSPRS resonances would allow further improvement in sensor sensitivity, reliability, and manufacturability.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article