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双频带高吸收超表面氧化物未冷却探测器

Jun Yang, Jun Zhao, Chun-Li Yang

|September 22, 2025

概括

这项研究为未冷却的氧化瓦纳 (VOx) 探测器引入了一种新型的超表面,显著提高了红外光的吸收. "MIM+雨"结构通过克服小像素尺寸的挑战来提高探测器性能.

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
红外技术红外技术

背景情况:

氧化物 (VOx) 未冷却的探测器对于红外成像至关重要,因为它们的成本效益和缺乏冷却需求.
在VOx探测器中像素尺寸的减少导致光吸收的减少,阻碍了性能.
超表面为微尺度设备的光学性能增强提供了一个有前途的解决方案.

研究的目的:

设计和验证VOx未冷却探测器的新型超表面结构,以提高红外吸收率.
为了应对小型VOx探测器像素中吸收率降低的挑战.
为了证明双层超表面VOx探测器的增强性能.

主要方法:

利用模拟优化来设计一个"MIM+雨"双层超表面.
在长波红外 (LWIR) 和中红外 (MIR) 波段中研究的吸收特性.
制造并实验测试了拟议的超表面VOx探测器,并比较了其性能.

主要成果:

通过模拟,在长波红外范围实现了超过97%的平均吸收率.
在中红外波段表现出极好的吸收特性.
实验验证证证实了双层元表面对探测器吸收率的显著贡献.

结论:

拟议的"MIM+雨"超表面结构有效地提高了VOx未冷却探测器的吸收率.
这种双层超表面设计是可行的,与传统结构相比,它提供了卓越的性能.
这些发现为改进的红外探测器技术铺平了道路,提高了灵敏度和性能.

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