An auxiliary liquid modulated PCF-LSPR sensor with an adjustable wide detection range and high Ri sensitivity

IF 0.7 4区物理与天体物理 Q4 OPTICS

Journal of Russian Laser Research Pub Date : 2025-02-13 DOI:10.1007/s10946-024-10232-3

Sihang Lin, Pengxiang Chang, Ailing Zhang, Yanmei Shi, Honggang Pan, Fei Liu, Junfeng Wang, Pengxia Sui, Guangxiao Cao, Nan Cui, Yongning Zhang

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Abstract

In this paper, an auxiliary liquid modulated photonic crystal fiber (PCF) refractive index (RI) sensor based on local surface plasmon resonance (LSPR) is proposed, featuring an adjustable wide detection range and high RI sensitivity. The modulation of the electric field intensity distribution within the PCF is achieved by filling specific air holes with auxiliary liquid, leading to improved properties of the PCF-LSPR sensor. Moreover, the detection range of the sensor can be tailored by adjusting the RI of the auxiliary liquid. Using the full-vector finite element method (FEM), simulations of sensor performance are conducted. Results demonstrate that with an auxiliary liquid RI of 1.41, the sensor achieves a maximum RI sensitivity of 52438.02 nm/RIU and a detection range of 1.27–1.41. Similarly, with an auxiliary liquid RI of 1.43, the sensor achieves a maximum RI sensitivity of 46611.18 nm/RIU and maintains a detection range of 1.23–1.41. This approach allows for customization without altering the sensor geometry, facilitating the adjustment of the auxiliary liquid RI based on specific sensing requirements. Consequently, it offers tailored solutions for various sensing needs, thereby expanding the potential applications of PCF-LSPR sensors.

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具有可调宽探测范围和高Ri灵敏度的辅助液体调制PCF-LSPR传感器

本文提出了一种基于局部表面等离子体共振（LSPR）的辅助液体调制光子晶体光纤（PCF）折射率（RI）传感器，该传感器具有可调的宽探测范围和高的RI灵敏度。通过在特定的空气孔中填充辅助液体，实现了PCF内电场强度分布的调制，从而改善了PCF- lspr传感器的性能。此外，还可以通过调节辅助液的RI来定制传感器的检测范围。采用全矢量有限元法对传感器性能进行了仿真。结果表明，当辅助液的RI为1.41时，该传感器的最大RI灵敏度为52438.02 nm/RIU，检测范围为1.27 ~ 1.41。同样，当辅助液的RI为1.43时，传感器的最大RI灵敏度为46611.18 nm/RIU，检测范围为1.23-1.41。这种方法允许在不改变传感器几何形状的情况下进行定制，便于根据特定的传感要求调整辅助液体RI。因此，它为各种传感需求提供了量身定制的解决方案，从而扩大了PCF-LSPR传感器的潜在应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Russian Laser Research 物理-光学

CiteScore

1.50

自引率

22.20%

发文量

审稿时长

2 months

期刊介绍： The journal publishes original, high-quality articles that follow new developments in all areas of laser research, including: laser physics; laser interaction with matter; properties of laser beams; laser thermonuclear fusion; laser chemistry; quantum and nonlinear optics; optoelectronics; solid state, gas, liquid, chemical, and semiconductor lasers.