Title:
TUNABLE METASURFACE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/241380
Kind Code:
A1
Abstract:
Provided in the present invention is a tunable metasurface system. The system comprises: a wavefront modulator, an optical focusing device and a metasurface structure. The metasurface structure comprises a plurality of nanostructures made of a phase change material, and phase change states of the phase change material comprise a crystalline state and an amorphous state; the wavefront modulator performs wavefront modulation on incident control light, and transmits to the optical focusing device the control light which has been subjected to the wavefront modulation; the optical focusing device is used for focusing the control light which has been subjected to the wavefront modulation, so as to form a plurality of light focuses; and the metasurface structure is located at a light focal plane formed by the plurality of light focuses, and is used for performing phase modulation on incident working light, wherein the light path of the working light is not overlapped with the wavefront modulator and the optical focusing device. By means of the tunable metasurface system provided in the embodiments of the present invention, the independent light control over a nanostructure can be realized without being affected by wiring; moreover, hundred-nanometer-scale light focuses can be formed, such that the system can be suitable for smaller pixels or a greater number of pixels, and can be applied to a wider range of scenarios.
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Inventors:
HAO CHENGLONG (CN)
TAN FENGZE (CN)
ZHU RUI (CN)
ZHU JIAN (CN)
TAN FENGZE (CN)
ZHU RUI (CN)
ZHU JIAN (CN)
Application Number:
PCT/CN2023/097980
Publication Date:
December 21, 2023
Filing Date:
June 02, 2023
Export Citation:
Assignee:
SHENZHEN METALENX TECH CO LTD (CN)
International Classes:
G02B3/00; G02F3/00
Foreign References:
| CN115047653A | 2022-09-13 | |||
| CN217639765U | 2022-10-21 | |||
| CN113655675A | 2021-11-16 | |||
| CN113885104A | 2022-01-04 | |||
| CN114280704A | 2022-04-05 | |||
| CN111694170A | 2020-09-22 | |||
| US20190162592A1 | 2019-05-30 |
Attorney, Agent or Firm:
FAIRSKY LAW OFFICE (CN)
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