Metasurface spectrometers beyond resolution-sensitivity constraints

IF 12.5 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Advances Pub Date : 2024-12-06 DOI:10.1126/sciadv.adr7155

Feng Tang, Jingjun Wu, Tom Albrow-Owen, Hanxiao Cui, Fujia Chen, Yaqi Shi, Lan Zou, Jun Chen, Xuhan Guo, Yijun Sun, Jikui Luo, Bingfeng Ju, Jing Huang, Shuangli Liu, Bo Li, Liming Yang, Eric A. Munro, Wanguo Zheng, Hannah J. Joyce, Hongsheng Chen, Lufeng Che, Shurong Dong, Zhipei Sun, Tawfique Hasan, Xin Ye, Yihao Yang, Zongyin Yang

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Abstract

Conventional spectrometer designs necessitate a compromise between their resolution and sensitivity, especially as device and detector dimensions are scaled down. Here, we report on a miniaturizable spectrometer platform where light throughput onto the detector is instead enhanced as the resolution is increased. This planar, CMOS-compatible platform is based around metasurface encoders designed to exhibit photonic bound states in the continuum, where operational range can be altered or extended simply through adjusting geometric parameters. This system can enhance photon collection efficiency by up to two orders of magnitude versus conventional designs; we demonstrate this sensitivity advantage through ultralow-intensity fluorescent and astrophotonic spectroscopy. This work represents a step forward for the practical utility of spectrometers, affording a route to integrated, chip-based devices that maintain high resolution and SNR without requiring prohibitively long integration times.

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超表面光谱仪超越分辨率灵敏度的限制

传统的光谱仪设计需要在分辨率和灵敏度之间做出妥协，特别是当设备和探测器尺寸缩小时。在这里，我们报告了一个小型化的光谱仪平台，其中探测器的光通量随着分辨率的增加而增强。这个平面的、兼容cmos的平台是基于超表面编码器设计的，用于在连续体中显示光子束缚态，其中操作范围可以通过调整几何参数来改变或扩展。与传统设计相比，该系统可以将光子收集效率提高两个数量级；我们通过超低强度荧光和天体光子光谱证明了这种灵敏度优势。这项工作代表了光谱仪的实际应用向前迈进了一步，为集成的基于芯片的设备提供了一条途径，该设备可以保持高分辨率和信噪比，而不需要太长的集成时间。

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来源期刊

Science Advances 综合性期刊-综合性期刊

CiteScore

21.40

自引率

1.50%

发文量

1937

审稿时长

29 weeks

期刊介绍： Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.