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基于表面激发的高灵敏度气体传感器极子增强的光子旋转霍尔效应

Weifang Yang, L K Ang, Wentao Zhang

|September 15, 2023

概括

表面刺激极子 (SEP) 显著增强光子自旋霍尔效应 (PSHE),使得高度敏感的气体检测. 这种进步为先进的生物传感和化学传感应用提供了新的可能性.

科学领域:

光学和光子学在光学和光子学.
材料科学材料科学材料科学
化学传感器化学传感器

背景情况:

光子旋转霍尔效应 (PSHE) 描述了基于光束旋转的光束的横移.
加强PSHE对于开发敏感检测技术至关重要.
表面刺激极子 (SEP) 为操纵光物质相互作用提供了一种新的方法.

研究的目的:

通过使用表面刺激极子 (SEP) 来研究PSHE的增强.
开发一种利用SEP增强的PSHE检测二氧化硫 (SO2) 的气体传感器.
为了评估拟议的传感器的折射率灵敏度.

主要方法:

使用SEP来增强PSHE中的横移.
基于SEP增强PSHE的气体传感器的制造和表征.
测量传感器对折射率变化的响应,以检测二氧化.

主要成果:

实现了14.4倍的横向移位,相对于落下的光波长.
与表面等离子体共振 (SPR) 增强的PSHE相比,证明了3倍的增强.
在SO2检测中获得6320.4μm/RIU的高折射率灵敏度.

结论:

SEP是一种高度有效的机制,用于增强PSHE.
开发的传感器显示了高度敏感的气体传感的巨大潜力.
这项工作为先进的生物传感和化学传感应用开辟了新的途径.

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