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Spatial integration by a dielectric slab and its planar graphene-based counterpart

Zangeneh Nejad, F ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1364/OL.42.001954
  3. Abstract:
  4. In this contribution a new approach to perform spatial integration is presented using a dielectric slab. Our approach is indeed based on the fact that the transmission coefficient of a simple dielectric slab at its mode excitation angle matches the Fourier-Green's function of first-order integration. Inspired by the mentioned dielectric-based integrator, we further demonstrate its graphene-based counterpart. The latter is not only reconfigurable but also highly miniaturized in contrast to the previously reported designs [Opt. Commun. 338, 457 (2015)]. Such integrators have the potential to be used in ultrafast analog computation and signal processing. © 2017 Optical Society of America
  5. Keywords:
  6. Analog computers ; Dielectric materials ; Fourier series ; Graphene ; Integration ; Signal processing ; Analog computation ; Dielectric slabs ; Mode excitation ; New approaches ; Planar graphene ; Reconfigurable ; Spatial integrations ; Transmission coefficients ; Electric excitation
  7. Source: Optics Letters ; Volume 42, Issue 10 , 2017 , Pages 1954-1957 ; 01469592 (ISSN)
  8. URL: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-42-10-1954