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High quality factor non-uniform metasurfaces

Patent ·
OSTI ID:1924913
High quality factor electromagnetic metasurfaces are provided. The metasurface is configured to have in plane guided-mode resonances (e.g., corresponding to waveguide modes or the like). Coupling features are included in the metasurface that are configured to couple free-space radiation to the guided mode resonances. The resulting structures have a high-Q response to free-space radiation and can be used for various applications, such as beam splitting, beam steering, and beam focusing or defocusing.
Research Organization:
Stanford Univ., CA (United States)
Sponsoring Organization:
USDOE; US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF)
DOE Contract Number:
SC0019140
Assignee:
The Board of Trustees of the Leland Stanford Junior University (Stanford, CA)
Patent Number(s):
11,391,866
Application Number:
17/089,384
OSTI ID:
1924913
Country of Publication:
United States
Language:
English

References (6)

High-purity orbital angular momentum states from a visible metasurface laser journal April 2020
Multiwavelength achromatic metasurfaces by dispersive phase compensation journal February 2015
Broken Symmetry Dielectric Resonators for High Quality Factor Fano Metasurfaces journal November 2016
Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission journal August 2015
High Q Metasurfaces for Nonlinear Free-space Optics conference January 2019
A broadband achromatic metalens for focusing and imaging in the visible journal January 2018

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