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Conventional optical components including lenses based on refraction suffer from functional degradation as the device size decreases as well as other limitations. Metasurfaces consisting of subwavelength optical antenna arrays have emerged as planar optical devices that can overcome many of the limitations of conventional lenses. Such metasurfaces enable many promising applications in lenses, holograms, and optical cloaks. These metasurfaces have been developed for their specific functionalities by exploiting new materials and design algorithms. Various optical properties such as amplitude, phase, and even frequency can be tuned by adjusting the physical shape of individual antennas and their arrangement.

The articles in the March issue of MRS Bulletin overview recent progress in and the state-of-the-art of metasurfaces and their novel applications in optics and photonics.

This webinar featured three talks from experts in the field. A Q&A session was held with each speaker at the conclusion of their talks.

Talk Presentations:

• Metasurface optics for imaging applications
  Byoungho Lee, Seoul National University
  Talk begins at 10:16
     
• Machine learning for nanophotonics
  Michael Mrejen, Tel Aviv University
  Talk begins at 41:38
     
• Data driven methods for electromagnetics design
  Jonathan Fan, Stanford University
  (Q&A with Evan Wang, Stanford University)
  Talk begins at 1:10:05
     

Sponsored by American Elements