Analog computing by Brewster effect

摘要: Optical computing has emerged as a promising candidate for real-time and parallel continuous data processing. Motivated by recent progresses in metamaterial-based analog [Science 343, 160 (2014)], we theoretically investigate realization of two-dimensional complex mathematical operations using rotated configurations, recently reported [Opt. Lett. 39, 1278 (2014)]. Breaking the reflection symmetry, such configurations could realize both even odd Green's functions associated with spatial operators. Based on appealing theory Brewster effect, demonstrate first-order differentiator. Such efficient wave-based computation method not only circumvents major potential drawbacks metamaterials, but also offers most compact possible device compared to conventional bulky lens-based optical signal processors.