US 12,461,277 B2
Electrically-controlled dynamic optical component comprising a metasurface
Jianxiong Li, Tianjin (CN); Robin Kaissner, Stuttgart (DE); and Laura Na Liu, Stuttgart (DE)
Assigned to MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V., Munich (DE)
Appl. No. 18/258,108
Filed by MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V., Munich (DE)
PCT Filed Nov. 26, 2021, PCT No. PCT/EP2021/083191
§ 371(c)(1), (2) Date Jun. 16, 2023,
PCT Pub. No. WO2022/128410, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 20000477 (EP), filed on Dec. 18, 2020.
Prior Publication US 2024/0053510 A1, Feb. 15, 2024
Int. Cl. G02B 1/00 (2006.01); G02B 26/02 (2006.01); G02F 1/15 (2019.01)
CPC G02B 1/002 (2013.01) [G02B 26/02 (2013.01); G02F 1/15 (2013.01); G02F 2202/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical component comprising a planar metasurface arranged on a surface of a first substrate and a top layer arranged in a height direction Z above the metasurface, wherein the metasurface comprises an array of scattering structures comprising a metal, wherein the array is a repeating pattern of unit cells, wherein a unit cell comprises at least two different scattering structures,
Wherein the optical properties of the metasurface are controllable by a control signal, wherein first scattering structures are at least partially contacting a layer of a first substance comprising a dielectric material and having a first refractive index and second scattering structures are at least partially contacting a layer of a second substance comprising a polymer, which differs from the first substance and which provides a variable refractive index depending on the control signal,
wherein the real part n and/or the imaginary part K of the variable refractive index of the second substance is shiftable by the control signal to the respective value of the first substance.