Photonic crystal fiber sensor for double-channel synchronous detection

A photonic crystal fiber and synchronous detection technology, which is applied in the direction of material analysis, instruments, and measuring devices through optical means, can solve the problems of difficult microfluid filling and low detection efficiency, and achieve simple and feasible detection process and improved sensing performance , high efficiency effect

Active Publication Date: 2019-11-12
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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Problems solved by technology

[0004] The purpose of the present invention is to provide a photonic crystal fiber sensor with dual-channel synchronous detection, which can effectively solve the problems of low detection efficiency and difficult filling of microfluids, and realize synchronous detection of two microfluids

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  • Photonic crystal fiber sensor for double-channel synchronous detection
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  • Photonic crystal fiber sensor for double-channel synchronous detection

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Embodiment Construction

[0020] A photonic crystal fiber sensor with dual-channel synchronous detection, such as figure 1 As shown, it includes a fiber core 1, a gold nano film 2, an air hole 3, a substrate 4, a D-type microfluidic channel 5, and a barium fluoride dielectric layer film 6. Using stable quartz as the substrate material, the refractive index is about 1.45, and air holes are arranged around the center of the substrate. The air holes are arranged in a hexagonal shape with a radius of 0.6 μm, and the distance between adjacent air holes is L 1 2 μm, the missing central air hole part constitutes the core 1. A D-type microfluidic channel 5 is arranged on the base of the upper and lower parts of the air hole, the upper D-type microfluidic channel A is on the upper base of the air hole, and the lower D-type microfluidic channel B is placed on the lower base of the air hole , the radius R of the two D-type microfluidic channels is 8 μm, and the vertical distance L from the center of the optical ...

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Abstract

The invention provides a photonic crystal fiber sensor for double-channel synchronous detection. The photonic crystal fiber sensor comprises substrates, air holes, two D-type microfluidic channels, gold nano-films and a barium fluoride dielectric layer film. The air holes are distributed around the centers of the substrates, and the missing central air hole portion constitutes a fiber core; an upper D-type microfluidic channel A is arranged on the substrate at the upper parts of the air holes; a lower D-type microfluidic channel B is arranged on the substrate at the lower parts of the air holes; the gold nano-films are plated on the plane sides of the upper D-type microfluidic channel and the lower D-type microfluidic channel corresponding to the air holes; and the barium fluoride dielectric layer film is also plated between the gold nano-film and a microfluid of the lower D-type microfluidic channel B. The photonic crystal fiber sensor for the double-channel synchronous detection provided by the invention effectively solves the problems of low detection efficiency and difficulty in filling microfluids, and realizes simultaneous detection of two kinds of microfluids.

Description

technical field [0001] The invention relates to the technical field of photonic crystal fiber sensing, in particular to the technical field of dual-channel photonic crystal fiber sensing based on surface plasmon resonance. Background technique [0002] As one of the three pillars of information technology, sensing technology improves production efficiency and detection accuracy. Due to its unique advantages, the photonic crystal fiber sensor has the characteristics of remote real-time detection, small size, easy integration, high sensitivity, and flexible design, which attracts excellent researchers to invest a lot of energy and resources in its research. Combining the microstructure design of photonic crystal fiber with the high-sensitivity technology of surface plasmon resonance, it has the advantages of real-time monitoring, no labeling, and little interference. Photonic crystal fibers can be used as sensors instead of ordinary optical fibers to solve the phase matching ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/41G01N21/552
CPCG01N21/41G01N21/553
Inventor 邴丕彬隋佳蕾王花李忠洋谭联姚建铨高帅黄世超
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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