Performance study of a highly sensitive plasmonic sensor based on microstructure photonics using an outside detecting method

Sakib, Nazmus; Hassan, Walid; Rahman, Thouhidur

doi:10.1364/osac.433758

Cited by 4 publications

(1 citation statement)

References 34 publications

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“…This was also confirmed by many researchers in their study as reported by Sakib et al, they varied the thickness of the gold layer in the range of 30 nm, 40 nm and 50 nm. Confinement loss at 50 nm gold thickness has a small confinement loss value (Sakib et al, 2021), the same results have also been reported by Rahman et al, with variations in gold thickness of 25 nm, 30 nm, 40 nm, and 50 nm. that the thicker the gold layer the smaller the confinement loss value (M. T. .…”

Section: Figure 2 Real Relation Of Refractive Index Vs Confinement Losssupporting

confidence: 87%

Design of PCF-SPR for Early Detection of Skin Cancer Infected Cells

Azhar

Ramadhan

2022

jppipa, pendidikan ipa, fisika, biologi, kimia

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In this work, we carried out a numerical investigation of the PCF-SPR biosensor for the early detection of infected skin cancer cells and healthy cells. The study was conducted using the COMSOL Multiphysics-based FEM method. The dielectric material used in this PCF design is fused silica, while the plasmonic material is gold. The study was conducted to test the effect of the thickness of the plasmonic layer and the size of the air hole diameter on the PCF-SPR. It was found that the larger the diameter of the air hole in the proposed sensor gives a smaller confinement loss value, while the thicker the plasmonic material used also gives a small confinement loss value. The proposed PCF-SPR has a wavelength sensitivity in detecting skin cancer-infected cells of 7000 nm/RIU. These results indicate that the proposed sensor has a good performance in detecting cells infected with skin cancer.

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Section: Figure 2 Real Relation Of Refractive Index Vs Confinement Losssupporting

confidence: 87%

Design of PCF-SPR for Early Detection of Skin Cancer Infected Cells

Azhar

Ramadhan

2022

jppipa, pendidikan ipa, fisika, biologi, kimia

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Plasmonic sensor based on microstructure PCF: performance analysis with outside detecting approach

Abdulrazak

Hossain²,

Islam

et al. 2021

Opt Quant Electron

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In this microarticle, we design a microstructure photonic crystal fiber (PCF) based external sensing surface plasmon resonance (SPR) sensor. The performance of the design is numerically evaluated incorporating the finite element method (FEM) with Perfectly Matched Layer (PML) boundary condition of scattering case. Modal analysis is performed using finer mesh anlaysis. At the optimized thickness (40nm) of chemically stable gold(Au) layer, the ever been maximum reported wavelength sensitivity (WS) and standard amplitude sensitivity (AS) are to 75,000 nm per RIU and 480 per RIU correspondingly. The sensor also exposed high polynomial fit (𝐑 𝟐 = 𝟎. 𝟗𝟗) as well as high figure of merit (FoM) of 280.77 per RIU. Since very much high sensitivity, high detecting range and figure of merit, lowing the cost of fabrication, the proposed design can be a pleasant competitor in detection of the analyte refractive index (RI). At the last, to prove performance ability of our designed sensor all the performance parameter calculated results compare with the existing sensors.

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Graphene coated micro-channel fiber sensor based on localized surface plasmon resonance

Zhang

Yuan

et al. 2023

J. Opt. Soc. Am. B

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In this paper, a novel localized surface plasmon resonance (LSPR)-based micro-channel photonic crystal fiber (PCF) sensor is proposed. The LSPR-PCF sensor is designed with the three micro-channels, and the metal nanostraps and graphene are coated onto the PCF as the sensing elements. To realize high refractive index (RI) sensitivity, the influence of different plasmon materials, structure parameters, and graphene layers on the sensing performance of the LSPR-PCF sensor is investigated. The maximum wavelength sensitivity and amplitude sensitivity of the optimized LSPR-PCF sensor are up to 45800 nm/RIU and 1818RIU−1, respectively, when the RI changes from 1.35 to 1.42. Furthermore, the proposed LSPR-PCF sensor achieves the maximum figure of merit of 594.8, alone with a resolution of 2.18×10−6RIU. Because of its simple structure and excellent sensing performance, the proposed LSPR-PCF sensor has potential applications in biochemistry and environmental science.

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Performance study of a highly sensitive plasmonic sensor based on microstructure photonics using an outside detecting method

Cited by 4 publications

References 34 publications

Design of PCF-SPR for Early Detection of Skin Cancer Infected Cells

Design of PCF-SPR for Early Detection of Skin Cancer Infected Cells

Plasmonic sensor based on microstructure PCF: performance analysis with outside detecting approach

Graphene coated micro-channel fiber sensor based on localized surface plasmon resonance

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