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嵌套环共振SAGNAC增强光热气体传感使用纳米纤维

Fu Wan¹, Lei Zhu¹, Yaotian Bai¹

¹State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China.

Analytical chemistry

|March 5, 2026

概括

一种新的嵌套环共振萨格纳克增强光热 (PT) 气体传感器实现了高灵敏度和快速响应,用于微量气体检测. 这种PT传感器为远程监控应用提供了实用的可用性.

科学领域:

光学和光谱学,以及光学和光谱学.
化学传感器化学传感器
纳米技术纳米技术

背景情况:

光热 (PT) 光谱为微量气体检测提供了高灵敏度和选择性.
开发具有快速响应,高灵敏度和实际可用性的PT气体传感器是一项挑战.

研究的目的:

用纳米纤维展示一个嵌套环共振的萨格纳克增强的PT气体传感器.
为了提高微量气体检测的灵敏度和响应时间.

主要方法:

在萨格纳克循环中使用嵌套环共振器来增强腔腔的精致性.
使用纳米纤维进行PT相调节.
通过2厘米纳米纤维和73.3的共振器精度实现乙 (C2H2) 检测.

主要成果:

在C2H2检测中达到16ppb的噪声等效度.
证明了19秒的响应时间和在2小时内<3%的不稳定.
与无共振的萨格纳克干扰仪相比,灵敏度提高了10倍.

结论:

嵌套环共振萨格纳克增强PT传感器成功地集成了快速响应和高灵敏度.
传感器的设计简化了操作,使其适合远程监控和分布式传感.

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