紧型高分辨率光谱仪基于光子晶体的超 prism 和局部超聚合效应
Optics express
|October 20, 2023
概括
我们开发了一种紧的,高分辨率的光子晶体 (PhC) 光谱仪,使用超 prism 和局部超聚合效应具有广泛的带宽. 这种设计可扩展到光学频率,并且比传统光谱仪小得多.
科学领域:
- 光子学是指光子学的使用方法.
- 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:
- 传统的光谱仪通常面临尺寸,分辨率和工作带宽的限制.
- 光子晶体 (PhCs) 为先进的光学设备提供独特的光操纵特性.
研究的目的:
- 设计一个紧的,高分辨率的光子晶体光谱仪,具有广泛的工作带宽.
- 探索使用超 prism 和局部超聚合效应 (LSC) 来提高光谱仪的性能.
- 通过实验实施来验证设计,并评估其可扩展性到光学频率.
主要方法:
- 理论设计包括超镜和LSC效果.
- 优化入射角,斜角,光束宽度和PhC大小,以提高性能.
- 在微波频率范围内进行实验验证.
- 对光学频率的可扩展性分析,包括在绝缘体 (SOI) 芯片的实现.
主要成果:
- 一种新的PhC光谱仪设计,实现了紧的尺寸和高分辨率,具有广泛的工作带宽.
- 微波波段的实验结果与光束分裂效应的理论预测有很好的一致性.
- 该设计显示了对光学频率 (红外线,可见光,紫外线) 的理论可扩展性.
- 实现多层SOI芯片的潜力,以进一步扩大带宽.
结论:
- 与超高分辨率的传统设计相比,拟议的PhC光谱仪设计提供了显著的尺寸缩小 (比传统设计小两倍).
- 与超 prism 现象相结合的 LSC 效应使得在一个紧的足迹中实现高效的光谱分散.
- 该设计经过实验验证,并有望在各种光学频率范围内实现实际应用.
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