Refractometric Sensing with Periodic Nano-Indented Arrays: Effect of Structural Dimensions

Carney, Daniel; Svavarsson, Halldor; Hemmati, Hafez; Fannin, Alexander; Yoon, Jae; Magnusson, Robert

dc.contributor	Háskólinn í Reykjavík
dc.contributor	Reykjavik University
dc.contributor.author	Carney, Daniel
dc.contributor.author	orcid.org/0000-0002-1729-4098 Svavarsson, Halldor
dc.contributor.author	Hemmati, Hafez
dc.contributor.author	Fannin, Alexander
dc.contributor.author	Yoon, Jae
dc.contributor.author	Magnusson, Robert
dc.date.accessioned	2020-09-29T14:58:28Z
dc.date.available	2020-09-29T14:58:28Z
dc.date.issued	2019-02-21
dc.identifier.citation	Carney, D. J., Svavarsson, H. G., Hemmati, H., Fannin, A., Yoon, J. W., & Magnusson, R. (2019). Refractometric Sensing with Periodic Nano-Indented Arrays: Effect of Structural Dimensions. Sensors, 19(4), 897. https://doi.org/10.3390/s19040897
dc.identifier.issn	1424-8220
dc.identifier.uri	https://hdl.handle.net/20.500.11815/2081
dc.description	Publisher's version.(útgefin grein)
dc.description.abstract	Fabrication and sensor application of a simple plasmonic structure is described in this paper. The sensor element consists of nano-patterned gold film brought about from two-dimensional periodic photoresist templates created by holographic laser interference lithography. Reflectance spectroscopy revealed that the sensor exhibits significant refractive index sensitivity. A linear relationship between shifts in plasmonic resonances and changes in the refractive index were demonstrated. The sensor has a bulk sensitivity (SB) of 880 nm/refractive index unit and work under normal incidence conditions. This sensitivity exceeded that of many common types of plasmonic sensors with more intricate structures. A modeled spectral response was used to study the effect of its geometrical dimensions on plasmonic behavior. A qualitative agreement between the experimental spectra and modeled ones was obtained.
dc.description.sponsorship	This research was supported in part by the UT System Texas Nanoelectronics Research Superiority Award funded by the State of Texas Emerging Technology Fund. Additional support was provided by the Texas Instruments Distinguished University Chair in Nanoelectronics endowment.
dc.format.extent	897
dc.language.iso	en
dc.publisher	MDPI AG
dc.relation.ispartofseries	Sensors;19(4)
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Electrical and Electronic Engineering
dc.subject	Analytical Chemistry
dc.subject	Atomic and Molecular Physics, and Optics
dc.subject	Biochemistry
dc.subject	Refractometer
dc.subject	Plasmonic sensors
dc.subject	Biosensors
dc.subject	Nanocups
dc.subject	Periodic structures
dc.subject	Surface plasmon resonance
dc.subject	Gas detectors
dc.subject	Sensors
dc.subject	Rafmagnsverkfræði
dc.subject	Rafeindaverkfræði
dc.subject	Efnafræði
dc.subject	Atómfræði
dc.subject	Sameindafræði
dc.subject	Lífefnafræði
dc.subject	Rafgas
dc.subject	Litrófsgreining
dc.subject	Nanótækni
dc.title	Refractometric Sensing with Periodic Nano-Indented Arrays: Effect of Structural Dimensions
dc.type	info:eu-repo/semantics/article
dcterms.license	©2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
dc.description.version	"Peer Reviewed"
dc.identifier.doi	10.3390/s19040897
dc.relation.url	http://www.mdpi.com/1424-8220/19/4/897/pdf
dc.contributor.school	Tækni- og verkfræðideild (HR)
dc.contributor.school	School of Science and Engineering (RU)