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US 2026/0202591 A1Published application
Non-Planar Metasurfaces And Related Fabrication Methods
AssigneeMassachusetts Institute of Technology
InventorsLouis Marie Philippe Martin, Luigi Ranno, Hung-I LIN, Fan YANG, Tian GU, Juejun Hu
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Abstract
Methods for transferring optically active features, such as meta-atoms and diffractive elements, formed on a planar surface to a non-planar surface with high precision are described. Optical devices having meta-atoms or other diffractive features located on non-planar and/or planar surfaces can be fabricated using the described methods. Related optical systems and components are described.
Claims20
A method comprising:
- forming a thin-optic element on a planar surface of a first substrate, the thin-optic element comprising a plurality of patterned features arranged on the planar surface to provide at least one optical function for light comprising at least one specified wavelength incident on the thin-optic element, wherein the plurality of patterned features comprise one or both of micro-scale features and nanometer-scale features;
- encasing multiple surfaces of each patterned feature of the plurality of patterned features on the planar surface in a thermoplastic;
- delaminating the thermoplastic with the plurality of patterned features encased therein from the planar surface to form a thin-optic film;
- and
- applying the thin-optic film onto a non-planar surface of a second substrate.
2 more elements
An optical device comprising:
- an optically transparent substrate having a first surface and a second surface to pass light through the optically transparent substrate when the light is incident on the optically transparent substrate;
- and
- a thin-optic film adhered to the first surface of the optically transparent substrate, wherein the thin-optic film comprises:
- a thermoplastic encasing multiple surfaces of each feature of a plurality of patterned features, wherein the plurality of patterned features are arranged in the thermoplastic to provide at least one optical function for light comprising at least one specified wavelength incident on the thin-optic film, wherein the plurality of patterned features comprise one or both of micro-scale features and nanometer-scale features.
1 more element
Dependencies are inferred from the claim text.