Reflection through a parallel-plate waveguide formed by two graphene sheets

El-Amassi, Dena M.; Taya, Sofyan A.

doi:10.1016/j.photonics.2017.03.008

Cited by 18 publications

(10 citation statements)

References 21 publications

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“…The reflectance curve can also be used to calculate the FWHM. It can be calculated using the formula FW HM = θ 2 − θ 1 (14) where θ 1 and θ 2 are the resonance angles at 50% reflectance. DA can be obtained as [37]…”

Section: Structure Considerationmentioning

confidence: 99%

“…The employment of BP, G, and TMDGs in SPR sensors has attracted much interest in 2D nanomaterials. SPR is an attractive procedure for detecting biomolecules because it uses 2D nanomaterials that interact well with the biomolecules of the sensing material [ 14 ]. The number of 2D nanomaterial layers can be varied to realize desired electronic properties for enhanced biosensing.…”

Section: Introductionmentioning

confidence: 99%

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Optical Detection of Fat Concentration in Milk Using MXene-Based Surface Plasmon Resonance Structure

et al. 2022

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MXene (Ti3C2Tx) has emerged very recently as an interacting material for surface plasmon resonance (SPR) configuration. It was discovered that Ti3C2Tx can facilitate the adsorption of biomolecules due to its higher binding energies, stronger interaction between matter and light, and larger surface area. In this work, a two-dimensional Ti3C2Tx and silicon layer-based SPR refractometric sensor is proposed for the sensitive and fast detection of milk fat concentration due to the high significance of this issue to people all over the world. The proposed SPR structure employs BK7 (BK7 is a designation for the most common Borosilicate Crown glass used for a variety of applications in the visible range) as a coupling prism and silver as a metal layer. The layer thicknesses and the number of Ti3C2Tx sheets are optimized for the highest performance. The highest reached sensitivity is 350 deg./RIU with 50 nm silver and 4 nm silicon with a monolayer of Ti3C2Tx, which is ultra-high sensitivity compared to the latest work that utilizes SPR configuration. The proposed SPR-based sensor’s ultra-high sensitivity makes it more attractive for usage in a variety of biosensing applications.

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Section: Structure Considerationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optical Detection of Fat Concentration in Milk Using MXene-Based Surface Plasmon Resonance Structure

et al. 2022

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“…[15][16][17] Today, researchers employ 2D materials like graphene, dichalcogenides, and black phosphorus (BP) in designing various SPR biosensors for the detection of biomolecules. 18 The presence of 2D nonmaterial in the SPR biosensors improves the interactions of biomolecules of an analyte. Moreover, the 2D inorganic nonmaterial can be easily fabricated by using an electrospinning technique due to its low fabrication cost, safety, and continuous production advantages.…”

Section: Introductionmentioning

confidence: 99%

A theoretical approach for a new design of an ultrasensitive angular plasmonic chemical sensor using black phosphorus and aluminum oxide architecture

et al. 2023

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“…Several interesting two-dimensional (2D) transition metal di-chalcogenides (TMDEs) materials are available to fulfill this challenge. Due to its unique optical and electrical properties, the graphene family has attracted a lot of attention recently [ 33 , 34 ]. In recent work, graphene-MoS 2 layers have been used to design a biosensor for biomolecule detection.…”

Section: Introductionmentioning

confidence: 99%

Detection of Virus SARS-CoV-2 Using a Surface Plasmon Resonance Device Based on BiFeO3-Graphene Layers

et al. 2023

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Coronavirus disease (COVID-19) pandemic outbreak is being investigated by severe respirational syndrome coronavirus-2 (SARS-CoV-2) as a global health issue. It is crucial to propose sensitive and rapid coronavirus detectors. Herein, we propose a biosensor based on surface plasmon resonance (SPRE) for the detection of SARS-CoV-2 virus. To achieve improved sensitivity, a BiFeO 3 layer is inserted between a metal (Ag) thin film and a graphene layer in the proposed SPRE device so that it has the structure BK7 prism/ Ag/ BiFeO 3 / graphene/ analyte. It has been demonstrated that a small variation in the refractive index of the analyte can cause a considerable shift in the resonance angle caused by the remarkable dielectric properties of the BiFeO 3 layer, which include a high index of refraction and low loss. The proposed device has shown an extremely high sensitivity of 293 deg/RIU by optimizing the thicknesses of Ag, BiFeO 3 , and the number of graphene sheets. The proposed SPRE-based sensor is encouraging for use in various sectors of biosensing because of its high sensitivity.

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Reflection through a parallel-plate waveguide formed by two graphene sheets

Cited by 18 publications

References 21 publications

Optical Detection of Fat Concentration in Milk Using MXene-Based Surface Plasmon Resonance Structure

Optical Detection of Fat Concentration in Milk Using MXene-Based Surface Plasmon Resonance Structure

A theoretical approach for a new design of an ultrasensitive angular plasmonic chemical sensor using black phosphorus and aluminum oxide architecture

Detection of Virus SARS-CoV-2 Using a Surface Plasmon Resonance Device Based on BiFeO3-Graphene Layers

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