角度不敏感的超薄宽带可见吸收器 基于介电-半导体-丢失金属薄膜堆
Yuanchen Ma1,2, Junhao Hu1,2, Wenfeng Li1,3
1State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China.
Nanomaterials (Basel, Switzerland)
|October 14, 2023
概括
这项研究引入了一种超薄宽带吸收器,在可见光谱中达到96.88%的吸收率. 这种新的设计为各种应用提供了宽角耐受性和具有成本效益的制造.
科学领域:
- 材料科学 材料科学 材料科学
- 光学是什么?光学是什么?光学是什么?
- 纳米技术纳米技术
背景情况:
- 宽带吸收器对于需要高效光管理的应用至关重要.
- 现有的超薄吸收器往往会在效率,角宽容或制造成本方面做出妥协.
研究的目的:
- 开发了一种超薄的,对角度不敏感的宽带吸收器,具有高效率和低制造成本.
- 探索一种新的介电-半导体-无损金属三层结构,用于可见光吸收.
主要方法:
- 制造三层薄膜结构,总厚度小于150 nm.
- 在整个可见光谱的吸收性表征.
- 对宽带吸收器的角度容忍度的评估.
主要成果:
- 在可见范围内达到96.88%的平均吸收率.
- 证明了高达±60°视角的角度不敏感.
- 设计是无光刻的,使得高通量制造成为可能.
结论:
- 拟议的超薄宽带吸收器提供了卓越的性能和制造优势.
- 该设备的设计在材料选择中表现出灵活性,特别是在金属层.
- 这项技术在光学和光子学中具有广泛应用的巨大潜力.
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