Illustration of metalens designed for compact depth-sensing
An illustration of a metalens, designed for compact depth sensing which consists of subwavelength-spaced square nanopillars. By alternating two different nanopillar patterns, visualized here in red and blue, this metalens forms two images at the same time that mimic the images captured by the layered retinae in the eyes of jumping spiders.
[Research supported by National Science Foundation grants IIS 1718012, ECCS 1541959 and DGE 1144152.]
To learn more about this research, see the Harvard news story Compact depth sensor inspired by spiders. (Date image taken: 2019; date originally posted to NSF Multimedia Gallery: Feb. 14, 2020)
Credit: Image courtesy of Qi Guo and Zhujun Shi/Harvard University
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