Title:
HIGH-ORDER ROTATIONAL SYMMETRY UNIT-BASED NONLINEAR GEOMETRIC PHASE METASURFACE
Document Type and Number:
WIPO Patent Application WO/2023/168555
Kind Code:
A1
Abstract:
The present disclosure provides a high-order rotational symmetry unit-based nonlinear geometric phase metasurface, which sequentially comprises from the bottom to the top: a substrate (1); a nonlinear material layer (2); and a metasurface structure layer (3), comprising multiple super-configuration units (4) having local high-order rotational symmetry, wherein the super-configuration units (4) are periodically arranged to form a lattice structure which has global high-order rotational symmetry. Under the pumping of fundamental waves in a circular polarization state, the nonlinear geometric phase metasurface can simultaneously generate nonlinear harmonic waves having the same and opposite circular polarization states as the fundamental waves, and a nonlinear geometric phase of the generated nonlinear harmonic waves is regulated and controlled by a local rotational symmetry order and lattice structure of the super-configuration units.
Inventors:
LUO XIANGANG (CN)
PU MINGBO (CN)
CHEN YAN (CN)
ZHANG FEI (CN)
MA XIAOLIANG (CN)
LI XIONG (CN)
ZHAO ZEYU (CN)
PU MINGBO (CN)
CHEN YAN (CN)
ZHANG FEI (CN)
MA XIAOLIANG (CN)
LI XIONG (CN)
ZHAO ZEYU (CN)
Application Number:
PCT/CN2022/079528
Publication Date:
September 14, 2023
Filing Date:
March 07, 2022
Export Citation:
Assignee:
INST OPTICS & ELECTRONICS CAS (CN)
International Classes:
G02B27/00
Foreign References:
| CN113946009A | 2022-01-18 | |||
| CN108107498A | 2018-06-01 | |||
| US20220011646A1 | 2022-01-13 |
Other References:
XIE XIN, PU MINGBO, JIN JINJIN, XU MINGFENG, GUO YINGHUI, LI XIONG, GAO PING, MA XIAOLIANG, LUO XIANGANG: "Generalized Pancharatnam-Berry Phase in Rotationally Symmetric Meta-Atoms", PHYSICAL REVIEW LETTERS, AMERICAN PHYSICAL SOCIETY, US, vol. 126, no. 18, 1 May 2021 (2021-05-01), US , pages 183902, XP093090282, ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.126.183902
"Doctoral Dissertation", 1 August 2020, HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, CN, article ZHAO, WENCHAO: "Research on High Efficiency Second Harmonic Micro-Nano Functional Devices Based on Au-WS2 Composite Metasurface", pages: 1 - 126, XP009548960, DOI: 10.27157/d.cnki.ghzku.2020.000708
"Doctoral Dissertation", 1 August 2020, HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, CN, article ZHAO, WENCHAO: "Research on High Efficiency Second Harmonic Micro-Nano Functional Devices Based on Au-WS2 Composite Metasurface", pages: 1 - 126, XP009548960, DOI: 10.27157/d.cnki.ghzku.2020.000708
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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