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|Title:||Localized surface plasmon resonance biosensor: an improved technique for SERS response intensification|
|Citation:||Optics Letters, 2019; 44(5):1134-1137|
|Publisher:||Optical Society of America|
|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|
|Appears in Collections:||Electrical and Electronic Engineering publications|
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