Abstract:Magneto-plasmonic sensors based on surface plasmon resonance have been studied considerably in recent years, as they feature high sensitivity and ultrahigh resolution. However, the majority of such investigations focus on prism-based sandwich architectures that not only impede the miniaturization of devices but also have a weak transverse magneto-optical Kerr effect (TMOKE) in magnitude. Herein, we theoretically demonstrate a magneto-plasmonic sensor composed of Au/Co bilayer nanodisk arrays on top of opticall… Show more
“…The fabrication of a periodic square array of Au/Co bilayer nano-disks on an optically thick metallic substrate results in the demonstration of a high-performance magnetoplasmonic sensor [ 82 ]. This results in the formation of an ultranarrow SPR mode with a full width at half maximum of 7 nm and RI sensitivity as high as 717 nm/R.I.U, whose high-quality resonance characteristic is like the surface lattice resonance linked to the far-field coupling between nano-objects.…”
Section: Types Of Ms-based Sensorsmentioning
confidence: 99%
“…Nevertheless, the few linked earlier investigations have shown that hafnium nitride has better plasmonic efficiency for photothermal applications relative to gold and even titanium nitride [ 80 ]. Figure 2 Types of MS such as ( a ) All-dielectric MS [ 81 ], ( b ) All-metallic MS [ 82 ], and ( c ) Hybrid MS [ 83 ], for biosensing [ 84 ], gas sensing [ 85 ], and temperature sensing applications [ 86 ]. …”
Section: Introductionmentioning
confidence: 99%
“… Types of MS such as ( a ) All-dielectric MS [ 81 ], ( b ) All-metallic MS [ 82 ], and ( c ) Hybrid MS [ 83 ], for biosensing [ 84 ], gas sensing [ 85 ], and temperature sensing applications [ 86 ]. …”
One of the fastest-expanding study areas in optics over the past decade has been metasurfaces (MSs). These subwavelength meta-atom-based ultrathin arrays have been developed for a broad range of functions, including lenses, polarization control, holography, coloring, spectroscopy, sensors, and many more. They allow exact control of the many properties of electromagnetic waves. The performance of MSs has dramatically improved because of recent developments in nanofabrication methods, and this concept has developed to the point that it may be used in commercial applications. In this review, a vital topic of sensing has been considered and an up-to-date study has been carried out. Three different kinds of MS absorber sensor formations, all-dielectric, all-metallic, and hybrid configurations, are presented for biochemical sensing applications. We believe that this review paper will provide current knowledge on state-of-the-art sensing devices based on MSs.
“…The fabrication of a periodic square array of Au/Co bilayer nano-disks on an optically thick metallic substrate results in the demonstration of a high-performance magnetoplasmonic sensor [ 82 ]. This results in the formation of an ultranarrow SPR mode with a full width at half maximum of 7 nm and RI sensitivity as high as 717 nm/R.I.U, whose high-quality resonance characteristic is like the surface lattice resonance linked to the far-field coupling between nano-objects.…”
Section: Types Of Ms-based Sensorsmentioning
confidence: 99%
“…Nevertheless, the few linked earlier investigations have shown that hafnium nitride has better plasmonic efficiency for photothermal applications relative to gold and even titanium nitride [ 80 ]. Figure 2 Types of MS such as ( a ) All-dielectric MS [ 81 ], ( b ) All-metallic MS [ 82 ], and ( c ) Hybrid MS [ 83 ], for biosensing [ 84 ], gas sensing [ 85 ], and temperature sensing applications [ 86 ]. …”
Section: Introductionmentioning
confidence: 99%
“… Types of MS such as ( a ) All-dielectric MS [ 81 ], ( b ) All-metallic MS [ 82 ], and ( c ) Hybrid MS [ 83 ], for biosensing [ 84 ], gas sensing [ 85 ], and temperature sensing applications [ 86 ]. …”
One of the fastest-expanding study areas in optics over the past decade has been metasurfaces (MSs). These subwavelength meta-atom-based ultrathin arrays have been developed for a broad range of functions, including lenses, polarization control, holography, coloring, spectroscopy, sensors, and many more. They allow exact control of the many properties of electromagnetic waves. The performance of MSs has dramatically improved because of recent developments in nanofabrication methods, and this concept has developed to the point that it may be used in commercial applications. In this review, a vital topic of sensing has been considered and an up-to-date study has been carried out. Three different kinds of MS absorber sensor formations, all-dielectric, all-metallic, and hybrid configurations, are presented for biochemical sensing applications. We believe that this review paper will provide current knowledge on state-of-the-art sensing devices based on MSs.
“…In this paper, the influence of the Fano transmission spectrum on the RI was further studied, which provides the possibility for the study on optical sensors [37,38]. Figure 3A shows the Fano transmission lines of the waveguide with different RI (n = 1-1.08).…”
Glycerol is widely used in medicine, industry and skin care products. This study investigated a high-sensitivity glycerol concentration sensor based on double Fano resonances in a metal-insulator-metal (MIM) waveguide structure, established a coupling model of a baffle waveguide (BW) and a circular split ring resonator (CSRR), and generated asymmetric double Fano resonances in the waveguide structure. The Fano resonance transmittance reached 0.82, and the linear relationship between the refractive index (RI) and the glycerol concentration was obtained using the sensitivity of the Fano resonance spectrum. The application of the proposed sensor for glycerol concentration detection revealed that the Fano resonance wavelength was redshifted with the RI and that the sensing sensitivity reached 1153.85 nm/refractive index unit (RIU); therefore, the quick detection of the corresponding glycerol concentration can be realized. This proposed structure has significance in the research of optical sensors and optical switches.
“…Metamaterial absorbers (MAs) typically consist of three layers in a metal-dielectric-metal (MDM) structure, i.e., the patterned metal antenna and the thick metal mirror layers are separated by a thin dielectric spacer. [9][10][11][12][13][14][15] The MDM structure is ideal for designing an MPA, for this kind of structure of MPA can store the internal electromagnetic energy and then dissipate it gradually. The unitary structure of the MDM absorber, also known as a meta-atom, primarily has a regular and simple geometry, including squares, 16 rectangles, 17 crosses 18 and circles.…”
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