Optically‐Induced 90° Dynamic Polarization Rotation via Phase‐Transition Optical Activity in Metasurfaces
ABSTRACT Dynamic polarization control is pivotal for advanced photonic applications. In this work, we demonstrate a novel approach for all‐optical dynamic polarization switching, enabled by phase‐transition optical activity (PTOA) in chiral metasurfaces. Leveraging the extreme sensitivity of phase transitions near the transition point, we achieve a 90 nonlinear optical polarization rotation with an exceptionally small control power variation of 0.2 mW. Our approach not only enables low‐power and highly responsive polarization control but also establishes a promising strategy with significant potential for both fundamental studies and practical applications in polarization imaging, optical metrology, and integrated photonic systems.
Authors
- Mengxin Ren (ORCID: https://orcid.org/0000-0003-0322-8193)
- Shengchao Gong (ORCID: https://orcid.org/0009-0001-3460-967X)
- Fei Xie (ORCID: https://orcid.org/0000-0002-2930-2892)
- Wei Cai (ORCID: https://orcid.org/0000-0002-4451-5239)
- Weiye Liu
- Di Zhang
- Lun Qu
- Xiaohai Liu
- Wei Liu
- Wei Wu
- Jingjun Xu
- Wei Liu
- Jingjun Xu
Institutions
- Hebei Agricultural University (CN)
- National University of Defense Technology (CN)
- Shanxi University (CN)
- Nankai University (CN)
- Institute of Applied Physics (RU)
Publication Details
- Journal
- Laser & Photonics Review
- Published
- 2026-07-30
- DOI
- https://doi.org/10.1002/lpor.71625
- Primary Topic
- Metamaterials and Metasurfaces Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- Natural Science Foundation of Tianjin City
- Higher Education Discipline Innovation Project
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities