Numerical study on plasmonic sensor based on double-side metal-coated dielectric nanoslit array

Jeong Geun Yun, Joonsoo Kim, Seung Yeol Lee, Byoungho Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Surface plasmon resonance (SPR) has been widely used in sensors because of its high sensitivity to refractive index change of the surrounding materials. Recently, much attention has been placed on metallic nanoslit array sensors by using various mechanisms such as Fano-resonance and extraordinary optical transmission because they allow SPR at normal incidence which can be used for miniaturization of plasmonic sensors [1]. The sensing performance of nanoslit-array-based SPR sensors are often quantified by the sensitivity (S) and the figure of merit (FOM). These parameters are highly dependent on the dielectric constant of slab material (εm = εr + iεi). When |εr| and |εi| decrease, sensitivity and FOM increase respectively [2]. Such reduction of effective dielectric constant of the slab can be achieved by replacing the conventional metal nanoslit array into the proposed double-side metal-coated dielectric nanoslit array.

Original languageEnglish
Title of host publicationJSAP-OSA Joint Symposia, JSAP 2015
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)9784863485419
ISBN (Print)9784863485419
StatePublished - 2015
EventJSAP-OSA Joint Symposia 2015 - Nagoya, Japan
Duration: 13 Sep 201516 Sep 2015

Publication series

NameOptics InfoBase Conference Papers
VolumePart F132-JSAP 2015
ISSN (Electronic)2162-2701

Conference

ConferenceJSAP-OSA Joint Symposia 2015
Country/TerritoryJapan
CityNagoya
Period13/09/1516/09/15

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