Dual-Aperture Dual-Core Photonic Crystal Fiber Sensor Based on Surface Plasmon Resonance

IF 3.3 4区 物理与天体物理 Q2 CHEMISTRY, PHYSICAL
Hua Wang, Jingya Zhao, Xiaohu Yi, Ji Qi, Shuqing Yan, Pibin Bing
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Abstract

Surface plasmon resonance sensing, which is based on photonic crystal fiber sensing technology, has a broad spectrum of applications in the detection of pharmaceuticals, environmental pollution, and food safety. This investigation proposes a photonic crystal fiber optic sensor with two cores and two holes to address the issue of limited sensor sensitivity. The high sensitivity of the sensor is optimized by the dual-channel design, which minimizes energy loss and maximizes the coupling efficacy in SPP mode by increasing the contact area of the measured liquid. Concurrently, the plasma resonance process generates an increased amount of energy due to the dual-core architecture. Simulation results show that the sensor has a maximum wavelength sensitivity of 21,500 nm/RIU and a maximum theoretical resolution as high as 4.878 × 10−7 RIU in the refractive index detection range of 1.33–1.43 and thus is expected to be applied in the field of hematology detection.

Abstract Image

基于表面等离子体共振的双孔双芯光子晶体光纤传感器
基于光子晶体光纤传感技术的表面等离子体共振传感技术在药品检测、环境污染和食品安全方面有着广泛的应用。本研究提出了一种双芯双孔的光子晶体光纤传感器,以解决传感器灵敏度有限的问题。双通道设计优化了传感器的高灵敏度,通过增加被测液体的接触面积,最大限度地减少了能量损失,并最大限度地提高了 SPP 模式下的耦合效率。同时,由于采用了双核架构,等离子体共振过程产生的能量也有所增加。仿真结果表明,该传感器在折射率检测范围 1.33-1.43 内的最大波长灵敏度为 21,500 nm/RIU,最大理论分辨率高达 4.878 × 10-7 RIU,因此有望应用于血液检测领域。
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来源期刊
Plasmonics
Plasmonics 工程技术-材料科学:综合
CiteScore
5.90
自引率
6.70%
发文量
164
审稿时长
2.1 months
期刊介绍: Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons. Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.
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