迷你化无序光子分子光谱仪
Yujia Zhang1, Tom Albrow-Owen2, Zhenyu Zhao1
1State Key Laboratory of Photonics and Communications, School of Information and Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
Light, science & applications
|March 31, 2025
概括
研究人员开发了一种超微型的无序光子分子光谱仪. 这种新型设备克服了当前计算光谱仪的尺寸和分辨率限制,实现了高性能便携式光谱学.
科学领域:
- 光子学 是一个光子学.
- 频谱学是一种光谱学.
- 集成光学 集成光学 集成光学
背景情况:
- 计算光谱仪为现场测量提供小型化,芯片上的解决方案.
- 目前的系统在编码器性能方面面临局限性,冗余的响应矩阵阻碍了微型化.
- 尺寸,分辨率和带宽之间的权衡限制了光谱编码器,需要长光学路径来实现高分辨率.
研究的目的:
- 报告一个突破性的超小型化无序光子分子光谱仪.
- 克服现有光谱仪的分辨率,带宽和足迹限制.
- 为了展示一种新的高性能,可制造的微型光谱学的方法.
主要方法:
- 利用复杂的电磁合来生成准随机的光谱响应矩阵.
- 采用光子频率,振幅和相位的动态操纵.
- 在一个CMOS兼容的集成光子平台上构建了光谱仪.
主要成果:
- 实现了高Q因子 (>7.74 × 10^5) 的有效无限的自由光谱范围 (FSR).
- 证明了超过100纳米的广泛操作带宽.
- 在一个超紧的足迹 (70 × 50 μm2) 中,达到8 pm的超高光谱分辨率.
结论:
- 无序的光子分子光谱仪超过了当前的分辨率-带宽-足迹指标.
- 新的准随机响应矩阵克服了小型化光谱仪的基本限制.
- 这项技术为高性能,可制造的微型光谱学提供了一种开创性的方法.
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