Single-shot on-chip spectral sensors based on photonic crystal slabs
Journal Article
·
· Nature Communications
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Electrical and Computer Engineering; DOE/OSTI
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Electrical and Computer Engineering
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies
- Huazhong Univ. of Science and Technology, Wuhan (China). Dept. of Physics
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.
- Research Organization:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- NA0003525
- OSTI ID:
- 1624139
- Journal Information:
- Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 10; ISSN 2041-1723
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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