Theoretical Differential Phase Analysis for Characterization of Aqueous Solution Using Surface Plasmon Resonance

Banerjee, Jayeta; Bera, Mahua; Ray, Mina

doi:10.1007/s11468-016-0446-4

Cited by 10 publications

(5 citation statements)

References 28 publications

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“…Where: dk represents the thickness of the kth layer, θi is the angle of incidence, nk is the kth layer refractive index which depends on wavelength. The total characteristic transfer matrix has been estimated via multiplication for each Mk matrix of kth layer index as shown [19] :…”

Section: …… (4)mentioning

confidence: 99%

“…The Fresnel reflection coefficient (r) for multilayers by M total matrix terms is estimated via [19] :…”

Section: …… (4)mentioning

confidence: 99%

“…Where M11, M12, M21 and M22 represent the components of M_total , q1 as well as qN are the cross magnetic incidence ray for the initial and the final layers, respectively. So, the reflectance (R) of a multilayer structure is given as [19] : ( ) .….. (7) The reflectance can be estimated depending on two principles:…”

Section: …… (6)mentioning

confidence: 99%

“…It happens when wavelength has been decreased, |ϵ_mr | represented approaches of critical value with SPW that cannot be excited [18]. The intensity's beam of polarized light can be accessed via matrix method utilizing Maxwell's and Fresnels equations [19]:…”

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confidence: 99%

“…Where M k represents characteristic transfer matrix and as the same as the luminous spread through a layers , β k is a phase agent , and q k the cross magnetic incident ray , as shown by the following equations [19] :…”

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confidence: 99%

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Surface Plasmon Resonance (SPR) Simulation of a Gold-Bismuth Bi-layer Gas Sensor

Ulwali

Abbas

Karam

et al. 2022

eijs

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The features of plasmonic surface frequency sensor technology, such as the small number of sensor samples required, electromagnetic interference, and high sensitivity, have been found to be highly important.. In this paper, a simulation program was created in Matlab_b2018 by adopting Fresnel equations for calculating the reflectivity of the electromagnetic wave between different media. A surface plasmon resonance sensor based on electromagnetic wavelengths within the range (100 nm to 1000 nm) has been proposed. The transfer matrix was used for a system consisting of four different media. The first medium is a semicircular BK7 glass prism, the second medium is a gold layer (40 nm thick), then a bismuth layer of variable thicknes(10–80) nm, and the last medium is air as the sensing medium. The surface plasmon resonance (SPR) technique was adopted based on the Kretschmann configuration in the simulation of the proposed system. The simulation results showed that there is no SPR within the range of wavelengths (100-500nm), while SPR appears in the visible region and in the IR region at wavelengths (900 and 1000nm). The SPR phenomenon starts to weaken gradually with an increase in the thickness of the bismuth layer. The full width at half maximum (FWHM) decreases with the decrease of thickness of bismuth layer. The best value for it is (10) at thickness (d=10 nm) and wavelength (900 nm). While the height (H) of the SPR dip increased, with the best value of (0.95) at thickness (d=10 nm) and wavelength (700 nm). Also, the sensitivity increased with increasing the bismuth layer thickness at wavelengths (700 , 800, and 1000 ) nm. The highest obtained sensitivity(S) was (112.5 deg/RIU).

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Section: …… (4)mentioning

confidence: 99%

“…The Fresnel reflection coefficient (r) for multilayers by M total matrix terms is estimated via [19] :…”

Section: …… (4)mentioning

confidence: 99%

Section: …… (6)mentioning

confidence: 99%

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confidence: 99%

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confidence: 99%