Miniature optical planar camera based on a wide-angle metasurface doublet corrected for monochromatic aberrations.

ABSTRACT: 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° × 60°, and operates at 850 nm wavelength with 70% focusi

SUBMITTER: Arbabi A 

PROVIDER: S-EPMC5133709 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature