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A Photonic Crystal Slab Laplace Operator for Image Differentiation

Posted on 2018-02-23 - 20:14
We introduce an implementation of a Laplace differentiator based on a photonic crystal slab that operates at transmission mode. We show that the Laplace differentiator can be implemented provided that the guided resonances near the Γ point exhibit an isotropic band structure. Such a device may facilitate nanophotonics-based optical analog computing for image processing.

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AUTHORS (5)

Cheng Guo
Meng Xiao
Momchil Minkov
Yu Shi
Shanhui Fan

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