Elecrtrically Reconfigurable Infrared III-V Phased Array Metasurfaces
Technical Report,30 Sep 2016,27 Sep 2019
UNIVERSITY OF CALIFORNIA SANTA BARBARA Santa Barbara United States
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Metasurfaces are ultrathin flat surfaces decorated with sub-wavelength nanostructures that can induce abrupt changes in the phase, amplitude, and polarization of a light beam. Demonstrations of metasurface beam shapers, flat lenses, waveplates, and holograms reveal the great promise to replace conventional bulk optical components with flat surfaces. Introducing tunability and re-configurability to metasurfaces is probably the holy grail of research in the field, and would lead to new classes of programmable optical and optoelectronics components. We report accomplishments made toward the goal of designing, fabricating and demonstrating reconfigurable metasurfaces based on electrically-controlled III-V device heterostructures and various thermo-optic based metasurfaces.
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