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Analog optical computing by half-wavelength slabs

机译:半波长平板模拟光学计算

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摘要

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 our previously design based on Brewster effect (Youssefi et al., 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. (C) 2017 Elsevier B.V. All rights reserved.
机译:使用半波长平板呈现了一种执行模拟光学区分的新方法。 首先,半波长电介质板用于设计第一阶微分器。 后者适用于主要偏振,与我们以前的设计基于Brewster效果相比(Youssefi等,2016)。 受到所提出的介电微分器的启发,并通过利用石墨烯的独特特征,我们进一步设计并使用半波长等级石墨烯膜进行了可重构和高度小型化的微小器材。 据我们所知,我们所提出的基于石墨烯的微区别甚至比到目前为止所呈现的最紧凑的差异板。 (c)2017年Elsevier B.V.保留所有权利。

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