Estimation of resonance characteristics of single-layer surface-plasmon sensors in liquid solutions using Fano’s approximation in the visible and infrared regions
D. Nesterenkoab, R. A. Pavelkinb, Sh. Hayashicd
a IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS,
Molodogvardeyskaya 151, 443001, Samara, Russia
b Samara National Research University, Moskovskoye Shosse 34, 443086, Samara, Russia
c Kobe University, Kobe 657-8501, Japan
d Moroccan Foundation for Science, Innovation and Research (MAScIR), Rabat 10100, Morocco
In this work, we consider the use of planar sensing structures, which support excitation of surface plasmon polarition (SPP) modes, for detecting changes in solvents, i.e. water, ethanol, isopropanol. In the structures under study, SPP modes propagate along the interfaces between metals and general solvents. The analysis of characteristics of the resonance response is based on Fano’s approximation within the coupled-mode theory in the visible and infrared regions. The maximum sensitivity and field enhancement are revealed in the near- and mid-infrared regions in the case of ethanol and isopropanol, which enables sensing applications beyond the regions of water absorption.
nanophotonics, plasmonics, planar structures, surface plasmon-polariton mode, optical resonances, sensing, Fano’s approximation.
|Ministry of Science and Higher Education of the Russian Federation
|Russian Science Foundation
|Russian Foundation for Basic Research
|The work was partly funded by the Russian Federation Ministry of Science and Higher Education within a state contract with the "Crystallography and Photonics" Research Center of the RAS under agreement 007-ÃÇ/×3363/26 (Design of the experiment), the Russian Science Foundation under project No. 19-19-00514 (Realization of numerical experiments), and the Russian Foundation for Basic Research under project No. 18-29-20006 (Numerical results).
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D. Nesterenko, R. A. Pavelkin, Sh. Hayashi, “Estimation of resonance characteristics of single-layer surface-plasmon sensors in liquid solutions using Fano’s approximation in the visible and infrared regions”, Computer Optics, 43:4 (2019), 596–604
Citation in format AMSBIB
\by D.~Nesterenko, R.~A.~Pavelkin, Sh.~Hayashi
\paper Estimation of resonance characteristics of single-layer surface-plasmon sensors in liquid solutions using Fano’s approximation in the visible and infrared regions
\jour Computer Optics
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