Single-shot on-chip spectral sensors based on photonic crystal slabs

Zhu Wang, Soongyu Yi, Ang Chen, Ming Zhou, Ting Shan Luk, Anthony James, John Nogan, Willard Ross, Graham Joe, Alireza Shahsafi, Ken Xingze Wang, Mikhail A. Kats and Zongfu Yu ()
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Zhu Wang: University of Wisconsin–Madison
Soongyu Yi: University of Wisconsin–Madison
Ang Chen: University of Wisconsin–Madison
Ming Zhou: University of Wisconsin–Madison
Ting Shan Luk: Sandia National Laboratories
Anthony James: Sandia National Laboratories
John Nogan: Sandia National Laboratories
Willard Ross: Sandia National Laboratories
Graham Joe: University of Wisconsin–Madison
Alireza Shahsafi: University of Wisconsin–Madison
Ken Xingze Wang: Huazhong University of Science and Technology
Mikhail A. Kats: University of Wisconsin–Madison
Zongfu Yu: University of Wisconsin–Madison

Nature Communications, 2019, vol. 10, issue 1, 1-6

Abstract: Abstract Miniaturized spectrometers have significant potential for portable applications such as consumer electronics, health care, and manufacturing. These applications demand low cost and high spectral resolution, and are best enabled by single-shot free-space-coupled spectrometers that also have sufficient spatial resolution. Here, we demonstrate an on-chip spectrometer that can satisfy all of these requirements. Our device uses arrays of photodetectors, each of which has a unique responsivity with rich spectral features. These responsivities are created by complex optical interference in photonic-crystal slabs positioned immediately on top of the photodetector pixels. The spectrometer is completely complementary metal–oxide–semiconductor (CMOS) compatible and can be mass produced at low cost.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08994-5

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DOI: 10.1038/s41467-019-08994-5

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