Nano-antenna elements for controlling optical phase

Yuval Yifat, Michal Eitan, Zeev Iluz, Amir Boag, Yael Hanein, Jacob Scheuer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We demonstrate the use of nano-antenna unit cells composed of coupled dipole and patch elements over a reflective back plane, which are designed to control the phase of a reflected optical beam. The antennas were studied both numerically and experimentally and allow exact control over the output phase in the range of 00-3600. Several diffractive optical applications are shown numerically and experimentally: Blazed gratings which allow deflection of the output beam to high reflection angles show very high diffraction efficiency, and arbitrary wave shapes such as computer generated holograms can be formed with very high efficiency and large angles relative to the incident beam. The optical conversion efficiency was measured to be above 40% for all applications.

Original languageEnglish
Title of host publicationPhotonic and Phononic Properties of Engineered Nanostructures IV
ISBN (Print)9780819499073
StatePublished - 2014
EventPhotonic and Phononic Properties of Engineered Nanostructures IV - San Francisco, CA, United States
Duration: 3 Feb 20146 Feb 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferencePhotonic and Phononic Properties of Engineered Nanostructures IV
Country/TerritoryUnited States
CitySan Francisco, CA


  • Computer generated holography
  • Diffractive optical element
  • Nanoantenna
  • Nanofabrication
  • Phase control
  • Plasmonic device
  • Plasmonice structure


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