摘要
The miniaturization of spectrometers has received much attention in recent years.The rapid development of metasurfaces has provided a new avenue for creating more compact and lightweight spectrometers.However,most metasurface-based spectrometers operate in the visible light region,with much less research on near-infrared wavelengths.This is possibly caused by the lack of effective metasurface filters for the near-infrared light.We design and fabricate a polarizationinsensitive amorphous silicon metasurface that exhibits unique transmission spectra in parts of the visible and nearinfrared wavelengths.By passing the light to be measured through a metasurface filter array and measuring the transmitted power,we achieve the precise reconstruction of unknown spectra in the visible and near-infrared range(450-950 nm)using an algorithm matched to the filter model.Our approach is a step towards miniaturized spectrometers within the visible-to-near-infrared range based on metasurface filter arrays.
作者
Kaikai Gao
Peiyang Li
Jiayi Wang
Sheng Liu
Peng Li
Dexing Yang
Jianlin Zhao
Dandan Wen
高凯凯;李佩洋;王佳怡;刘圣;李鹏;杨德兴;赵建林;温丹丹(Key Laboratory of Light Field Manipulation and Information Acquisition,Ministry of Industry and Information Technology,and Shaanxi Key Laboratory of Optical Information Technology,School of Physical Science and Technology,Northwestern Polytechnical University,Xi’an 710129,China)
基金
supported by the National Natural Science Foundation of China(No.62175200)
the National Key Research and Development Program of China(No.2022YFA1404800).
