Keyword Suggestions

Results
 
 
Account Login
 
 
 
 
 

Library Navigation

 
 

Browse Meetings

 
 
 
L2.03 - Dielectric Gradient Metasurface Optical Elements 
Date/Time:
December 1, 2014   2:30pm - 2:45pm
 
Speaker:
 
Taxonomy
Si 
 
 
 
 
 
Share:
 

Gradient metasurfaces are 2-dimensional optical elements capable of manipulating light by imparting local, space-variant phase-changes on an incident electromagnetic wave. These surfaces have thus far been constructed from nanometallic optical antennas and high diffraction efficiencies have been limited to operation in reflection mode. We describe the experimental realization and operation of dielectric gradient metasurface optical elements capable of also achieving high efficiencies in transmission mode in the visible. Ultrathin gratings, lenses, and axicons have been realized by patterning a 100-nm-thin Si layer into a dense arrangement of Si nanobeam-antennas. The use of semiconductors can broaden the general applicability of gradient metasurfaces as they offer facile integration with electronics and can be realized by mature semiconductor fabrication technologies.
 


 
 
Average Rating: (No Ratings)
  Was great, surpassed expectations, and I would recommend this
  Was good, met expectations, and I would recommend this
  Was okay, met most expectations
  Was okay but did not meet expectations
  Was bad and I would not recommend this
 



Submit
 
Performance Enhancement of Pentacene Based Organic Field-Effect Transistor through DNA Interlayer
Semiconducting Polymer-Dipeptide Nanostructures by Ultrasonically-Assisted Self-Assembling
DNA as a Molecular Wire: Distance and Sequence Dependence
Structure-Property Relationship in Biologically-Derived Eumelanin Cathodes Electrochemical Energy Storage
Artificial Physical and Chemical Awareness (proprioception) from Polymeric Motors