Active mid-infrared plasmonic beam steering devices

D. C. Adams, T. Ribaudo, S. Thongrattanasiri, E. A. Shaner, V. A. Podolskiy, D. Wasserman

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We demonstrate the steering of coherent mid-infrared radiation through plasmonic structures consisting of a single sub-wavelength slit flanked by a periodic array of grooves, fabricated on GaAs substrates. We demonstrate control of steering angle by tuning the incident radiation, and study beam quality for the transmitted light. In addition, we demonstrate that small shifts in the refractive index of the GaAs substrate can actively control the steering angle of the transmitted light, opening a path towards the development of no-moving-parts plasmonic beam steering devices.

Original languageEnglish (US)
Title of host publicationActive Photonic Materials III
StatePublished - 2010
EventActive Photonic Materials III - San Diego, CA, United States
Duration: Aug 2 2010Aug 5 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherActive Photonic Materials III
Country/TerritoryUnited States
CitySan Diego, CA


  • Beam steering
  • Mid-infrared
  • Plasmonics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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