Designing a biosensor using a stampli photonic quasi - crystal fiber
01 Jan 2016-pp 215-217
About: This article is published in international conference on Modelling and simulation.The article was published on 2016-01-01. It has received 3 citations till now. The article focuses on the topics: Fiber & Surface plasmon resonance.
Citations
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TL;DR: In this paper, a sixfold photonic quasi-crystal fiber with a trapezoidal analyte channel based on surface plasmon resonance was proposed for the detection of high-refractive-index (RI) liquid analytes and numerically analyzed its sensing performance for different liquid analyte refractive indices and heights using the finite element method.
Abstract: We propose a sixfold photonic quasi-crystal fiber with a trapezoidal analyte channel based on surface plasmon resonance for the detection of high-refractive-index (RI) liquid analytes and numerically analyze its sensing performance for different liquid analyte refractive indices and heights using the finite-element method. In contrast to the common D-shaped structure photonic crystal fiber, we design a trapezoidal analyte channel to investigate the role of the sample liquid height within the channel and discussed the feasibility of the fabrication process. We find that with various liquid analyte heights ratios of 20%, 25%, 30%, and 50% of the maximum channel height, the proposed biosensor exhibits linear sensing performance with a maximum RI sensitivity of 4400, 6100, 8000, and 17000 nm/RIU, respectively, for analytes RI range of 1.44–1.57, 1.41–1.51, 1.40–1.49, and 1.40–1.44. This sensor is suitable to detect various high RI chemicals, biochemicals, and organic chemical samples. Owing to its simple structure of the proposed biosensor with promising linear sensing performance, we envisage that this biosensor could turn out to be a versatile and competitive instrument for the detection of high-RI liquid analytes.
73 citations
Cites background or methods from "Designing a biosensor using a stamp..."
...biosensor using PMMA as the cladding material for sensitivity enhancement and structural stabilization [7]....
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...low reliability [6], [7], even though their sensing performance is good enough to detect small variations of the refractive index...
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TL;DR: In this paper, a D-shaped photonic crystal fiber (PCF) based surface plasmon resonance sensor with a V-groove analyte channel was proposed for the detection of analytes and numerically analyzed its sensing performance for a wide range of liquid analytes.
24 citations
27 Aug 2017
TL;DR: In this paper, a six-fold photonic quasi-crystal fiber with a fan-shaped analyte channel based on surface plasmon resonance (SPR) was designed to detect biomolecules.
Abstract: In this research work, we design a biosensor using a six-fold photonic quasi-crystal fiber with a fan-shaped analyte channel based on surface plasmon resonance (SPR). We numerically analyze both the dispersion relations and loss spectra for three different refractive indices of the analyte, \(n_{a}\), using finite element method. Through optimization of the structure, we find that the proposed biosensor exhibits a maximum refractive index sensitivity of 3200 nm/RIU and a resolution of \(3.12\times 10^{-5}\) RIU when \(n_a\) is increased from 1.41 to 1.43. We infer that the coupling between the core mode and SPR mode can be explained as a complete coupling of the loss matching condition or an incomplete coupling of the phase matching condition. Owing to the ease of fabrication of the proposed biosensor with an average sensitivity of 2250 nm/RIU, we envisage that this biosensor could turn out to be a versatile instrument for detecting the biomolecules.
4 citations
References
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TL;DR: Main application areas are outlined and examples of applications of SPR sensor technology are presented and future prospects of SPR technology are discussed.
Abstract: Since the first application of the surface plasmon resonance (SPR) phenomenon for sensing almost two decades ago, this method has made great strides both in terms of instrumentation development and applications. SPR sensor technology has been commercialized and SPR biosensors have become a central tool for characterizing and quantifying biomolecular interactions. This paper attempts to review the major developments in SPR technology. Main application areas are outlined and examples of applications of SPR sensor technology are presented. Future prospects of SPR sensor technology are discussed.
5,127 citations
TL;DR: In this paper, the basic understanding for the optical excitation of surface plasmons is developed, starting from low level concepts, and a short summary of the potential device applications is given.
Abstract: Beginning from low level concepts the basic understanding for the optical excitation of surface plasmons is developed. Prism coupling using the attenuated total reflection technique is discussed as well as the less traditional grating coupling technique. A brief discussion of some recent developments using twisted gratings is also presented. Finally a short summary of the potential device applications is given.
369 citations
TL;DR: In this paper, the fabrication of triangular lattices of parallel gold and silver nanowires of high optical quality was reported, with diameters down to $500\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ and length to diameter ratios as high as 100 000.
Abstract: We report the fabrication of triangular lattices of parallel gold and silver nanowires of high optical quality, with diameters down to $500\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ and length-to-diameter ratios as high as 100 000. The nanowires are supported by a silica glass matrix and are disposed around a central solid glass core, i.e., a missing nanowire. These centimeter-long structures make it possible to trap light within an array of nanowires and characterize the plasmon resonances that form at specific optical frequencies. Such nanowire arrays have many potential applications, e.g., imaging on the subwavelength scale.
223 citations
TL;DR: In this article, the authors present experimental results on coupling to surface plasmon modes on gold nanowires selectively introduced into polarization-maintaining photonic crystal fibers, which can be potentially used as in-fiber wavelength-dependent filters and polarizers and as near-field tips for sub-wavelength-scale imaging.
Abstract: We present experimental results on coupling to surface plasmon modes on gold nanowires selectively introduced into polarization-maintaining photonic crystal fibers. Highly polarization- and wavelength-dependent transmission is observed. In one sample 24.5 mm long, the transmission on and off resonance differs by as much as 45 dB. Near-field optical images of the light emerging from such a gold-filled fiber show light guided on the wire at surface plasmon resonances. Finite element simulations are in good agreement with the experimental results. These gold-filled fibers can be potentially used as in-fiber wavelength-dependent filters and polarizers and as near-field tips for sub-wavelength-scale imaging.
211 citations
TL;DR: The first long, uniform, optical fibers in which visible light is guided in a single mode by metallic reflection are reported, describing the fabrication, experiment and characterization and comparing them with theoretical calculations.
Abstract: We report the first long, uniform, optical fibers in which visible light is guided in a single mode by metallic reflection. We describe the fabrication, experiment and characterization of these metallic optical fibers and compare them with theoretical calculations.
101 citations