Underlying Subwavelength Aperture Architecture Drives the Optical Properties of Microcavity Surface Plasmon Resonance Sensors.

Dragos Amarie, Nazanin Mosavian, Elijah L Waters, Dwayne G Stupack

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Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 authors.

Dragos AmarieDepartment of Physics and Astronomy, Georgia Southern University, Statesboro, GA 30560, USA.

Nazanin MosavianOptical Science and Engineering, University of New Mexico, Albuquerque, NM 87106, USA.

Elijah L WatersDepartment of Physics and Astronomy, Georgia Southern University, Statesboro, GA 30560, USA.

Dwayne G StupackDepartment of Reproductive Medicine, School of Medicine and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Indexed as

microcavity surface plasmon resonance sensorsMSPRSoptical biosensorsstanding surface plasmon wavessurface plasmon polaritonssurface plasmon resonance

Identifiers

PMID32872658

DOI10.3390/s20174906

PMCPMC7506739

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