基于 D 型光子晶体光纤的超灵敏折射率和温度传感器,在萨格纳克干涉仪中实现群双折射响应

IF 2.5 3区 物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-06-24 DOI:10.1016/j.photonics.2024.101291
Zefeng Li , Jinhui Yuan , Lan Rao , Binbin Yan , Kuiru Wang , Xinzhu Sang , Qiang Wu , Chongxiu Yu
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引用次数: 0

摘要

本文提出了一种基于萨格纳克干涉仪的 D 型光子晶体光纤(PCF)传感器,它在群双折射转折点(Bg)附近工作时可实现超高折射率(RI)和温度灵敏度。我们对 Bg 进行了理论分析和仿真计算,研究了 D 型 PCF 传感器的传感特性并获得了优化的结构参数。仿真结果表明,在 1.33 至 1.35 和 1.40 至 1.42 的 RI 范围内,最大平均 RI 灵敏度分别可达 3253.33 和 15500 nm/RIU。当温度在 -50 至 0 °C 和 0 至 50 °C 之间变化时,最大平均温度灵敏度分别达到 10.11 和 10.67 nm/°C。所提出的 D 型 PCF 传感器可实现双参数传感,在生化和环境科学领域具有巨大的实际应用潜力。
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Ultrasensitive refractive index and temperature sensor based on D-shaped photonic crystal fiber by group birefringence response in a Sagnac interferometer

In this paper, a D-shaped photonic crystal fiber (PCF) sensor based on a Sagnac interferometer is proposed, and it can achieve ultrahigh refractive index (RI) and temperature sensitivity when operating around the turning point of group birefringence (Bg). We undertake a theoretical analysis on Bg and a simulation calculation to study the sensing characteristics and obtain the optimized structure parameters of the D-shaped PCF sensor. The simulation results show that the maximum average RI sensitivities can reach 3253.33 and 15500 nm/RIU in the RI range of 1.33 to 1.35 and 1.40 to 1.42, respectively. When the temperature changes from -50 to 0 °C and 0 to 50 °C, the maximum average temperature sensitivities are up to 10.11 and 10.67 nm/°C, respectively. The proposed D-shaped PCF sensor can achieve dual-parameter sensing and has great potential for practical applications in biochemical and environmental science.

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来源期刊
CiteScore
5.00
自引率
3.70%
发文量
77
审稿时长
62 days
期刊介绍: This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.
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