基于双通道 D 形光子晶体光纤的新型等离子传感器，用于提高同时检测不同分析物的灵敏度。

IF 3.7 4区生物学 Q1 BIOCHEMICAL RESEARCH METHODS

IEEE Transactions on NanoBioscience Pub Date : 2023-07-11 DOI:10.1109/TNB.2023.3294330

J. Divya;S. Selvendran;A. Sivanantha Raja;Vamsi Borra

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引用次数: 0

摘要

本文提出了一种基于 D 型光子晶体光纤 (PCF) 的双通道质子传感器，利用表面等离子体共振 (SPR) 技术同时检测两种不同的分析物。该传感器在 PCF 的两个裂开表面上都使用了 50 nm 厚的化学性质稳定的金层来诱导 SPR 效应。这种配置具有卓越的灵敏度和快速响应能力，因此在传感应用中非常有效。我们使用有限元法（FEM）进行了数值研究。优化结构参数后，传感器的最大波长灵敏度为 10000 nm/RIU，两个通道之间的振幅灵敏度为 -216 RIU -1 。此外，对于不同的折射率（RI）范围，传感器的每个通道都具有独特的最大波长和振幅灵敏度。两个通道的最大波长灵敏度均为 6000 nm/RIU。在 1.31-1.41 折射率范围内，通道 1 (Ch1) 和通道 2 (Ch2) 的最大振幅灵敏度分别为 -85.39RIU -1 和 -304.52RIU -1 ，分辨率为 5×10 -5。值得注意的是，这种传感器结构能够同时测量振幅和波长灵敏度，从而增强了性能特征，适用于化学、生物医学和工业领域的各种传感用途。

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查看原文本刊更多论文

A Novel Plasmonic Sensor Based on Dual-Channel D-Shaped Photonic Crystal Fiber for Enhanced Sensitivity in Simultaneous Detection of Different Analytes

A dual-channel D-shaped photonic crystal fiber (PCF) based plasmonic sensor is proposed in this paper for the simultaneous detection of two different analytes using the surface plasmon resonance (SPR) technique. The sensor employs a 50 nm-thick layer of chemically stable gold on both cleaved surfaces of the PCF to induce the SPR effect. This configuration offers superior sensitivity and rapid response, making it highly effective for sensing applications. Numerical investigations are conducted using the finite element method (FEM). After optimizing the structural parameters, the sensor exhibits a maximum wavelength sensitivity of 10000 nm/RIU and an amplitude sensitivity of −216 RIU

$^{-{1}}$

between the two channels. Additionally, each channel of the sensor exhibits its unique maximal wavelength and amplitude sensitivities for different refractive index (RI) ranges. Both channels demonstrate a maximal wavelength sensitivity of 6000 nm/RIU. In the RI range of 1.31-1.41, Channel 1 (Ch1) and Channel 2 (Ch2) achieved their maximum amplitude sensitivities of −85.39RIU

$^{-{1}}$

and -304.52 RIU

$^{-{1}}$

, respectively, with a resolution of

${5}\times {10} ^{-{5}}$

. This sensor structure is noteworthy for its ability to measure both amplitude and wavelength sensitivity, providing enhanced performance characteristics suitable for various sensing purposes in chemical, biomedical, and industrial fields.

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来源期刊

IEEE Transactions on NanoBioscience 工程技术-纳米科技

CiteScore

7.00

自引率

5.10%

发文量

197

审稿时长

>12 weeks

期刊介绍： The IEEE Transactions on NanoBioscience reports on original, innovative and interdisciplinary work on all aspects of molecular systems, cellular systems, and tissues (including molecular electronics). Topics covered in the journal focus on a broad spectrum of aspects, both on foundations and on applications. Specifically, methods and techniques, experimental aspects, design and implementation, instrumentation and laboratory equipment, clinical aspects, hardware and software data acquisition and analysis and computer based modelling are covered (based on traditional or high performance computing - parallel computers or computer networks).