期刊
NATURE COMMUNICATIONS
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms13682
关键词
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资金
- Samsung Electronics
- DARPA
- National Science Foundation [1512266]
- Japan Student Services Organization (JASSO) fellowship
- DOE 'Light-Material Interactions in Energy Conversion' Energy Frontier Research Centre - US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001293]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1512266] Funding Source: National Science Foundation
Optical metasurfaces are two-dimensional arrays of nano-scatterers that modify optical wavefronts at subwavelength spatial resolution. They are poised to revolutionize optics by enabling complex low-cost systems where multiple metasurfaces are lithographically stacked and integrated with electronics. For imaging applications, metasurface stacks can perform sophisticated image corrections and can be directly integrated with image sensors. Here we demonstrate this concept with a miniature flat camera integrating a monolithic metasurface lens doublet corrected for monochromatic aberrations, and an image sensor. The doublet lens, which acts as a fisheye photographic objective, has a small f-number of 0.9, an angle-of-view larger than 60 degrees x 60 degrees, and operates at 850 nm wavelength with 70% focusing efficiency. The camera exhibits nearly diffraction-limited image quality, which indicates the potential of this technology in the development of optical systems for microscopy, photography, and computer vision.
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