多层光栅辅助spr型d形光纤的数值分析

IF 2.5 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-08-07 DOI:10.1109/LPT.2025.3596639

Linhang Yang;Haoran Wang;Haoyuan Cai;Longqin Chen;Yushan Chen;Xuchu Deng

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引用次数: 0

摘要

提出了一种新型的双金属叠加双层金属氧化物光栅结构的d型光纤表面等离子体共振（SPR）折射率传感器。在Ag/Au层表面涂覆ZnO和Ta2O5，可以显著提高光栅表面的电场强度。采用有限元法计算分析了光栅周期和光栅个数等结构参数对d型光纤光栅传感器性能的影响。优化参数以实现最大的传感器灵敏度。分析物RI检测范围为1.34 ~ 1.41，最大灵敏度为15600 nm/RIU。

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Numerical Analysis of Multi-Layer Grating Assisted SPR-Based D-Shaped Optical Fiber

A novel D-shaped fiber optic surface plasmon resonance (SPR) refractive index (RI) sensor with a bimetallic superimposed double-layer metal oxide grating structure is proposed. Ag/Au layers are coated with ZnO and Ta2O5 to considerably increase the electric field strength on the grating surface. The finite element method is used to calculate and analyze the influence of structural parameters, including grating period and the number of gratings, on the performance of the D-shaped fiber grating sensor. The parameters are optimized to achieve the maximum sensor sensitivity. The analyte RI detection range is 1.34–1.41, with a maximum sensitivity of 15,600 nm/RIU.

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.