2017/11/16 by Cheng Guo, Meng Xiao, Momchil Minkov +2
Physics and Astronomy · #physics.optics
paper · pdf · doi:10.1364/optica.5.000251
published as Optica 5.3 (2018): 251-256 · Primary text 6 pages, 5 figures; Supplementary material 5 pages, 3 figures
arxiv created 2017/11/16 · arxiv updated 2019/11/21
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.