Electro-optic modulation using lithium niobate metasurfaces with topological corner state-Reference-Cited by-同舟云学术

Electro-optic modulation using lithium niobate metasurfaces with topological corner state

Published:2023-04-24 Issue:17 Volume:122 Page:
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:

Author:

Gu Zhidong¹,Tan Haiyun²³,Peng Jiaxin⁴^ORCID,Chen Jiaxin⁵^ORCID,Zhang Di¹^ORCID,Xie Fei¹^ORCID,Wu Wei¹,Cai Wei¹^ORCID,Ren Mengxin¹^ORCID,Xu Jingjun¹^ORCID

Affiliation:

1. The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, School of Physics and TEDA Applied Physics Institute, Nankai University 1 , Tianjin 300071, People's Republic of China

2. School of Physical Science and Technology & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University 2 , Suzhou 215006, People's Republic of China

3. Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University 3 , Suzhou 215006, People's Republic of China

4. State Key Laboratory of Precision Spectroscopy, Quantum Institute for Light and Atoms, Department of Physics, East China Normal University 4 , Shanghai 200062, People's Republic of China

5. Science and Technology on Electro-Optical Information Security Control Laboratory 5 , Tianjin 300308, People's Republic of China

Abstract

Electro-optically (EO) tunable metasurfaces have received considerable attention owing to their capability for dynamic light field control. Here, we report an EO lithium niobate metasurface mediated by topological corner states. Such a supercell of metasurface is constructed by two kinds of finite-sized arrays possessing different topological properties via the generalized two-dimensional (2D) Su–Schrieffer–Heeger model. The generated narrow-linewidth resonance with high-quality factor and strong field localization are very suitable for EO modulation. The results reveal that the required driving external voltage to fully shift the resonance can be well below 15 V. Furthermore, the 0.46 rad of phase modulation is also demonstrated along with transmission intensity modulation. The results offer a fundamental path of potential for tunable displays, light detection, spatial light modulators, and Floquet topological metasurfaces.

Funder

Major Projects of Guangdong Education Department for Foundation Research and Applied Research

National Key Laboratory of Aerodynamic Design and Research

National Natural Science Foundation of China

111 Project

PCSRT

Fundamental Research Funds for the Central Universities

China Postdoctoral Science Foundation

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)