Title:
SINGLE NANOSTRUCTURE-INTEGRATED METALENS
Document Type and Number:
WIPO Patent Application WO/2023/221153
Kind Code:
A1
Abstract:
Systems and methods which provide single nanostructure-integrated metalens (110) configurations implementing projector and light shaper functionality are described. A single nanostructure-integrated metalens (110) may comprise an optical substrate (111) having a preconfigured mapping of integrated nanostructures (112) providing metasurfaces for modulating the behaviors of electromagnetic waves to implement a thin, flat lens. A period distance (P) for the nanostructures (112), a height (H) of the nanostructures (112), and a quantization for lateral sizes (S) of the nanostructures (112) may be selected for a particular single nanostructure-integrated metalens (110) configuration. A first phase map may be computed with respect to structured light generation and a second phase map may be computed with respect to light collimation, wherein fusion of these phase maps may be used to define a preconfigured mapping for the nanostructures (112) of a single nanostructure-integrated metalens (110) implementation. The phase distribution of the first phase map may be inverse designed, such as using an inverse phase design technique.
Inventors:
LAI YUNHE (CN)
BAI HAOYUAN (CN)
YANG QINGYI (CN)
JIANG JINBO (CN)
BAI HAOYUAN (CN)
YANG QINGYI (CN)
JIANG JINBO (CN)
Application Number:
PCT/CN2022/095158
Publication Date:
November 23, 2023
Filing Date:
May 26, 2022
Export Citation:
Assignee:
HONG KONG APPLIED SCIENCE & TECH RESEARCH INST CO LTD (CN)
International Classes:
G02B3/02; G02B7/02; G02B27/00; G03B21/14
Foreign References:
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| CN112505808A | 2021-03-16 | |||
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| CN113671613A | 2021-11-19 | |||
| US20200025985A1 | 2020-01-23 | |||
| CN114280703A | 2022-04-05 | |||
| US20190033683A1 | 2019-01-31 | |||
| US20190154877A1 | 2019-05-23 |
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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