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Beam manipulating by gate-tunable graphene-based metasurfaces

AbdollahRamezani, S ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1364/OL.40.005383
  3. Publisher: OSA - The Optical Society , 2015
  4. Abstract:
  5. We propose an unprecedented transmit-array configuration which can mold the incident beam by modulating phase and amplitude wavefronts. The transmit-array is composed of patterned graphene metasurfaces as shunt admittance sheets. Thanks to the exceptional features of graphene such as tunability, thinness, low loss, and high confinement of graphene plasmons, the proposed subwavelength structure passes strict touchstones for nano-photonic and optoelectronic applications. Two flat-optics functionalities, i.e., focusing and splitting, are realized by means of the proposed configuration
  6. Keywords:
  7. Optics ; Optoelectronic devices ; Graphene plasmons ; High confinement ; Incident beams ; Optoelectronic applications ; Shunt admittances ; Sub-wavelength structures ; Transmit arrays ; Tunabilities ; Graphene
  8. Source: Optics Letters ; Volume 40, Issue 22 , 2015 , Pages 5383-5386 ; 01469592 (ISSN)
  9. URL: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-40-22-5383