Compact Incoherent Spatial Frequency Filtering and Image Differentiation Enabled by Metalens Engineering

Dean S. Hazineh,Qi Guo,Zhujun Shi,Todd Zickler,Federico Capasso

OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT)（2021）

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摘要

A metalens opto-electronic camera for spatial frequency filtering under inco- herent illumination is introduced. By inverse-designing the phase on the metasurface, near arbitrarily structured 2D filters are realized for depth-invariant operation.

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