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      Metal-dielectric-metal plasmonic resonators for active beam steering in the infrared

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      Author
      Battal, E.
      Okyay, Ali Kemal
      Date
      2013
      Source Title
      Optics Letters
      Print ISSN
      0146-9592
      Publisher
      Optical Society of America
      Volume
      38
      Issue
      6
      Pages
      983 - 985
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      Active beam-steering devices near the optical frequencies have long been sought after due to their applications in communication, defense, and display technologies; however, the challenge lies in achieving actively tunable structures near these frequencies. An array of metal-dielectric-metal plasmonic resonators is demonstrated as a dynamic beam-steering device to operate at midinfrared wavelengths. We numerically demonstrate continuous-angle beam steering of 8.75° by making use of tunable properties of silicon as the active dielectric. The proposed device achieves a refractive index insensitive divergence angle and it operates in a 650 nm wide spectral window around 10 μm wavelength. The results of this Letter pave the way to exploiting active beam steering in various applications at midinfrared wavelengths.
      Keywords
      Applications in communications
      Beam-steering devices
      Display technologies
      Mid-infrared wavelengths
      Optical frequency
      Plasmonic resonators
      Spectral windows
      Tunable properties
      Display devices
      Plasmons
      Refractive index
      Resonators
      Metals
      Permalink
      http://hdl.handle.net/11693/21035
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OL.38.000983
      Collections
      • Department of Electrical and Electronics Engineering 3524
      • Institute of Materials Science and Nanotechnology (UNAM) 1775
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