US 11,841,518 B2
High-efficiency, large-area, topology-optimized metasurfaces
David Sell, Palo Alto, CA (US); Jonathan A. Fan, Los Altos, CA (US); Thaibao Phan, Redwood City, CA (US); and Jianji Yang, Menlo Park, CA (US)
Assigned to The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
Appl. No. 17/606,729
Filed by The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US)
PCT Filed Apr. 29, 2020, PCT No. PCT/US2020/030542
§ 371(c)(1), (2) Date Oct. 26, 2021,
PCT Pub. No. WO2020/223399, PCT Pub. Date Nov. 5, 2020.
Claims priority of provisional application 62/840,169, filed on Apr. 29, 2019.
Prior Publication US 2022/0214479 A1, Jul. 7, 2022
Int. Cl. G02B 5/18 (2006.01); G02B 1/00 (2006.01)
CPC G02B 5/188 (2013.01) [G02B 1/002 (2013.01); G02B 2207/101 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method comprising:
for each of a plurality of series-connectable wavelength-scale sections, each section having phase shifting characteristics associated with a desired phase profile, providing a plurality of connectable metasurface elements (“the metasurface elements”) that optimally scatter light for each of said sections, the metasurface elements configured to form a multi-section metasurface having a metasurface phase profile corresponding to the desired phase profile.