Analog Optical Computing by Half-Wavelength Slabs
Optics
2017-11-22 v1
Abstract
A new approach to perform analog optical differentiation is presented using half-wavelength slabs. First, a half-wavelength dielectric slab is used to design a first order differentiator. The latter works properly for both major polarizations, in contrast to designs based on Brewster effect [Opt. Lett. 41, 3467 (2016)]. Inspired by the proposed dielectric differentiator, and by exploiting the unique features of graphene, we further design and demonstrate a reconfigurable and highly miniaturized differentiator using a half-wavelength plasmonic graphene film. To the best of our knowledge, our proposed graphene-based differentiator is even smaller than the most compact differentiator presented so far [Opt. Lett. 40, 5239 (2015)].
Cite
@article{arxiv.1701.02630,
title = {Analog Optical Computing by Half-Wavelength Slabs},
author = {Farzad Zangeneh-Nejad and Amin Khavasi and Behzad Rejaei},
journal= {arXiv preprint arXiv:1701.02630},
year = {2017}
}