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两个波长的非散射红外传感系统使用电控光学晶体带通波器

Yusuke Awane, Takuya Inoue, Susumu Noda

|November 22, 2024

概括

我们开发了用于非散射红外 (NDIR) 传感的新型电控过器. 这一创新使得单个探测器能够进行可靠的气体度测量,即使光学功率不同.

科学领域:

光电学是指光电子产品.
频谱学是一种光谱学.
材料科学材料科学材料科学

背景情况:

非散射红外 (NDIR) 传感对于气体分析至关重要.
现有的NDIR系统通常需要机械机和多个探测器.
在NDIR传感器中实现精确的多波长光谱控制仍然是一个挑战.

研究的目的:

提出和演示一种使用堆叠的,电控带宽波器的新型NDIR传感方案.
为了实现强大的,单探测器,两波长的NDIR气体度测量.
克服传统NDIR系统的局限性,例如需要机械直升机.

主要方法:

将多个量子井 (MQW) 和光子晶体集成到带通波器中.
设计的MQW和光子晶体对称,窄带传输率在1035厘米-1和1085厘米-1.1.
叠加两个过器以实现在每个目标波数的传导率的独立调制.

主要成果:

在目标波数处实现具有高传导率的电控过器.
对堆叠过器的传导率独立调制的演示.
构建一个带有单个探测器的两波长,无机械切割器的NDIR系统.
强大的气体度测量能力,对发生光功率的变化不敏感.

结论:

拟议的堆叠,电控过器对先进的NDIR传感有效.
这项技术可以实现简化,稳固和精确的气体度测量.
开发的系统在传统的NDIR传感器设计上提供了显著的进步.

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