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Title: Strong Coupling between Tamm and Surface Plasmons for Advanced Optical Bio-Sensing
Authors: Balevičius, Zigmas
Keywords: strong coupling
Tamm plasmons
surface plasmons
hybrid plasmonic modes
optical biosensors
Issue Date: 2020
Publisher: MDPI
Citation: Balevičius, Z. Strong Coupling between Tamm and Surface Plasmons for Advanced Optical Bio-Sensing. Coatings 2020, 10, 1187.
Series/Report no.: 10;12
Abstract: The total internal reflection ellipsometry method was used to analyse the angular spectra of the hybrid Tamm and surface plasmon modes and to compare their results with those obtained using the conventional single SPR method. As such type of measurement is quite common in commercial SPR devices, more detailed attention was paid to the analysis of the p-polarization reflection intensity dependence. The conducted study showed that the presence of strong coupling in the hybrid plasmonic modes increases the sensitivity of the plasmonic-based sensors due to the reduced losses in the metal layer. The experimental results and analysis of the optical responses of three different plasmonic-based samples indicated that the optimized Tamm plasmons ΔRp(TP) and optimized surface plasmons ΔRp(SP) samples produce a response that is about five and six times greater than the conventional surface plasmon resonance ΔRp(SPR) in angular spectra. The sensitivity of the refractive index unit of the spectroscopic measurements for the optimized Tamm plasmon samples was 1.5 times higher than for conventional SPR, while for wavelength scanning, the SPR overcame the optimized TP by 1.5 times.
Description: This article belongs to the Special Issue Thin Films and Surface Optics
URI: http://dspace.vgtu.lt/handle/1/4136
ISSN: 2079-6412
Appears in Collections:Moksliniai straipsniai / Research articles

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