高效和选择性的集成定向合器,用于多种传感应用.
Ajmal Thottoli1, Gabriele Biagi2,3, Artem S Vorobev4,2,5
1Department of Electrical and Information Engineering, Politecnico di Bari, 70126, Bari, Italy. ajmal.thottoli@poliba.it.
Scientific reports
|December 20, 2023
概括
我们开发了一个紧的,低损失的定向合器复合器,用于近红外波长. 这种设备可以使用QEPAS等技术,对氨和甲进行敏感的无人机多气体检测.
科学领域:
- 光子学和光学工程 光子学和光学工程
- 气体传感技术的技术
背景情况:
- 定向合器 (DC) 是重要的光学元件.
- 近红外 (NIR) 光谱为气体检测提供了高灵敏度.
- 现有的多气体检测方法可能是重的,更不便携.
研究的目的:
- 设计和制造一个紧的,低损耗的,基于宽带定向合器 (DC) 的复杂器.
- 为了实现特定的NIR波长的高选择性和合效率 (CE).
- 为了实现便携式,灵敏的多气体检测,用于像氨和甲传感等应用.
主要方法:
- 制造了一种基于定向合器 (DC) 的新型双重复合器.
- 在目标NIR波长 (1530nm和1653.7nm) 上对复合器性能的描述.
- 合效率 (CE) 和选择性的评估.
主要成果:
- 展示了一个紧的,低损耗的,宽带定向合器 (DC) 复合器.
- 在1530nm达到73%的高合效率 (CE),在1653.7nm达到76%的高合效率.
- 已确认适用于检测氨和甲的多气体.
结论:
- 开发的重复器对于高灵敏度的传感技术,如石英增强光声谱学 (QEPAS) 是有效的.
- 它的紧和低损耗设计可便于便携式,无人机式气体检测.
- 双重机的宽带和可扩展性质支持多功能传感应用.
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