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Plasmonics: influence of the intermediate (or stick) layer on the efficiency of sensors

Abstract : The efficiency of plasmon-resonance-based sensors can be greatly improved with an accurate design of the nano-structures that constitute them. In this work we focus our attention on the design of a particular kind of these nanometric structures that consists of planar multilayered systems. We show the significant influence, on the plasmon resonance conditions, of the intermediate layer used to adhere a thin film of gold to a dielectric substrate. To illustrate this effect, we consider different intermediate layers to compute the optimal geometry that vanish the reflected energy. For this, we use the S-formulation and an evolutionary method for the electromagnetic and the optimization problems, respectively.
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Submitted on : Tuesday, May 11, 2021 - 7:23:24 PM
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Dominique Barchiesi, Demetrio Macías, L. Belmar-Letellier, D. van Labeke, Marc Lamy de la Chapelle, et al.. Plasmonics: influence of the intermediate (or stick) layer on the efficiency of sensors. Applied Physics B - Laser and Optics, Springer Verlag, 2008, 93 (1), pp.177-181. ⟨10.1007/s00340-008-3173-5⟩. ⟨hal-00369408⟩



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