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Otto and kretschmann configurations

WebJul 8, 2024 · Both the Kretschmann and Otto configuration need to meet the momentum match condition, thus the effect of these two configurations are similar, with only differences in structures and materials between each other. The sensing methods above all are based on inducing THz waves with various incident angles at a certain frequency, … WebLossy mode resonances (LMRs) and surface plasmon resonaces (SPRs) are obtained experimentally with a Kretschmann configuration using a BK7 glass prism with all sides polished and coated with indium tin oxide (ITO). The properties of ITO allow for obtaining LMRs and SPRs with the same experimental setup. The results are corroborated with a …

Combined SPR and SERS: Otto and Kretschmann configurations

WebJul 28, 2016 · The Kretschmann configuration, shown in Figure 2, is more commonly used and refers to when the thin metal film is evaporated onto the glass block as opposed to being separate. The wave of light passes … WebThe Kretschmann configuration is the most common approach, in which the thickness of the metal layer is usually a few tens of nanometers to ensure the evanescent wave to … bioplanet havermout https://bodybeautyspa.org

Combined SPR and SERS: Otto and Kretschmann …

WebJul 9, 2024 · In this work, we investigate THz surface plasmon polariton (SPP) resonances in BDS systems with spatially perturbed geometries using Kretschmann–Raether and Otto configurations. A THz SPP conversion efficiency of around 91% is witnessed in a straight BDS slab with the Otto configuration. WebMar 31, 2024 · From the results it can be evident that Otto configuration offers greater amount of reflected light intensity dip for a particular urine refractive index in comparison … WebSep 30, 2024 · In this study, simultaneous measurement of surface plasmon resonance (SPR) and surface enhanced Raman scattering (SERS) on flat metallic surfaces was demonstrated in a setup based on the Kretschmann configuration at acoustic frequency. bioplanet online shop

Attenuated Total Reflection for Terahertz Modulation, Sensing

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Otto and kretschmann configurations

Asymmetric surface plasmon resonances revisited as Fano

WebCombined SPR and SERS: Otto and Kretschmann configurations Dominique Barchiesi1, Thomas Grosges1, Florent Colas2and Marc Lamy de la Chapelle3 1Project Group for … WebIn practical terms there are two configurations, both based on the ATR technique available to optically excite SPR at the metal/dielectric (or emerging medium) interface. In the first, the Kretschmann configuration, the prism is in direct contact with …

Otto and kretschmann configurations

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WebAug 21, 2024 · There are two types of coupling configurations for surface plasmon resonance system using thin metal films, namely the Kretschmann and Otto configurations [ 9, 10 ]. Figure 1 a shows the Kretschmann configuration composed of a thin metal film and a glass substrate [ 9 ]. Since the refractive index of the glass is higher … WebThe Kretschmann configuration (KC) is one of the first setups, with which surface plasmon polariton (SPP) resonances were observed -6]. This configuration along with the Otto [1 configuration [7] was used for measuring dielectric permittivities [8-14]. In …

WebKretschmann- and Otto-type surface plasmon resonance (SPR) waveguide sensors are numerically investigated at terahertz frequencies. The reflectance of a three-layer model … WebSep 7, 2024 · We experimentally investigate how the Otto and Kretschmann configurations influence the linear coupling properties of smooth metal layers and the nonlinear generation of the second harmonic.

WebInfrared surface electromagnetic wave spectra, which are obtained by the Otto and Kretschmann configurations, are calculated by the Fresnel formula of stratified layers. The calculated reflectivity is plotted as a function of incidence angle, air gap thickness, metal layer thickness, and wavenumbers. WebKretschmann configuration [9]. Both of the configurations use attenuated total reflection method (ATR) to excite surface plasmons [10]. Kretschmann- Raether configuration is less complex to fabricate compared to Otto configuration. But Kretschmann- Raether configuration offers a fixed dielectric

WebOct 30, 2024 · The refractive index of ITO is larger than the optical fiber in visible spectral area (400 to 733nm), such that the structure is a typical Kretschmann configuration …

WebMar 1, 2024 · In the Kretschmann configuration the plasmonic metal (normally, Cu, Ag, or Au) layer is deposited on the hypotenuse face of a total-reflection prism. In this case, the … bioplanet turnhoutWebOct 30, 2024 · The refractive index of ITO is larger than the optical fiber in visible spectral area (400 to 733nm), such that the structure is a typical Kretschmann configuration surface plasmon resonance sensor. However, an Otto configuration is observed in the near infrared area (NIR) due to the ITO refractive index being smaller than the fiber core. bioplanet pathwaysWebThe sensing medium, also known as a sensing analyte, is the outermost layer in the proposed SPR biosensor design. There are 2 main SPR geometry configurations: the Kretschmann configuration and Otto’s design. The Kretschmann configuration’s benefits over Otto’s arrangement have made it more widely applicable . The SPR-based … dairy and breast cancer what the healthWebThis Letter revises the resonance theory of Kretschmann and Otto configurations, where enhanced electromagnetic fields and strong reflectance dips observed under total … dairy and breathing problemsWebSurface plasmon excitation using prism coupler was introduced by Kretschmann and Otto in 1968 [19,20]. The prism coupling based on Kretschmann configuration [19,21] has become a standard technique to excite the SP in regards to its alignment simplicity leading to easily controlled parameter and variableFigure 3( ). bioplant aifarWebNov 15, 2024 · interfaces, Otto and Kretschmann ATR configurations. 1. Introduction Surface plasmon polariton (SPPs) modes supported by metal-dielectric interfaces can be excited using high-index prisms in the attenuated total reflection (ATR) configurations in planar plasmonic structures [1, 2]. The optical properties of surrounding media determine … bio plantella thymiWebOct 23, 2015 · [1] Otto A 1968 Z. Phys. 216 398–410. Crossref Google Scholar [2] Kretschmann E and Raether H 1968 Z. Naturforsch. 23a 2135–6. Crossref Google Scholar [3] Raether H 1988 Surface Plasmons on Smooth and Rough Surfaces and on Gratings (Berlin: Springer) Crossref Google Scholar [4] Nesterov M L, Kats A V and Turitsyn S K … dairy and cancer myth