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Type: Journal article
Title: Localized surface plasmon resonance biosensor: an improved technique for SERS response intensification
Author: Islam, M.
Sultana, J.
Aoni, R.A.
Habib, M.S.
Dinovitser, A.
Ng, B.W.
Abbott, D.
Citation: Optics Letters, 2019; 44(5):1134-1137
Publisher: Optical Society of America
Issue Date: 2019
ISSN: 0146-9592
Statement of
Saiful Islam, Jakeya Sultana, Rifat Ahmmed Aoni, Selim Habib, Alex Dinovitser, Brian W.-H. Ng and Derek Abbott
Abstract: As technology continues to advance, the development of novel sensing systems opens up new possibilities for low cost, practical biosensing applications. In this paper, we demonstrate a localized surface plasmon resonance (LSPR) system that combines both wave-guiding and plasmonic resonance sensing with a single microstructured polymeric structure. Characterizing the sensor using Finite Element Method (FEM) simulation results show a record wavelength sensitivity (WS) of 111000 nm/RIU, high amplitude sensitivity (AS) of 2050 RIU−1 , high sensor resolution and limit of detection (LOD) of 9 × 10−7 RIU and 8.12 × 10−12 RIU2/nm respectively. Furthermore, these sensors have the capability to detect an analyte within the refractive index (RI) range of 1.33 to 1.43 in the visible to mid-IR therefore being potentially suitable for applications in biomolecular and chemical analyte detection
Keywords: Surface Plasmon Resonance; Equipment Design; Finite Element Analysis; Limit of Detection
Rights: © 2019 Optical Society of America
RMID: 0030110449
DOI: 10.1364/OL.44.001134
Grant ID:
Appears in Collections:Electrical and Electronic Engineering publications

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