Chiral emission from chirotopic nanostructures
Yawei Wu, Zhenyu Wang, Zihan Wu, Jiahui Xu, Chenlu He, Shuqing He, Ruize Wang, Mingsheng Gao, Qing Zhang, Chaowei Wang, Jincheng Ni, Zhipeng Li, Yiming Wu, Jiaru Chu, Dong Wu, Xiaogang Liu, Yang Chen · 2026
Read Chiral emission from chirotopic nanostructures by Yawei Wu, Zhenyu Wang, Zihan Wu, Jiahui Xu, Chenlu He, Shuqing He, Ruize Wang, Mingsheng Gao, Qing Zhang, Chaowei Wang, Jincheng Ni, Zhipeng Li, Yiming Wu, Jiaru Chu, Dong Wu, Xiaogang Liu, Yang Chen (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13396354.txt.
Description
Wu and co-authors show, in 2026, chiral light emission from structures that are not themselves chiral, breaking a long-standing symmetry rule. Making twisted light was thought to require mirror-asymmetric materials. The team instead used chirotopicity, local pockets of handedness inside achiral structures, an idea from Mislow over 50 years ago, never before put to work in photonics.
Photonic structures let them concentrate left- and right-handed chirotopic fields at chosen spots using ordinary linearly polarized light. Achiral dye molecules placed in those fields emitted intense, highly elliptical light in response. Luminescence dissymmetry factors ranged from 1.65 down to negative 1.58 across nanoparticles and dyes, approaching the maximum possible value of 2. In one design, the electric field in the left groove measured 15 times stronger than in the right, and emission ran 70 times brighter than a reference film. The effect should extend to many light emitters.
Catalog record
| CREATOR | Yawei Wu, Zhenyu Wang, Zihan Wu, Jiahui Xu, Chenlu He, Shuqing He, Ruize Wang, Mingsheng Gao, Qing Zhang, Chaowei Wang, Jincheng Ni, Zhipeng Li, Yiming Wu, Jiaru Chu, Dong Wu, Xiaogang Liu, Yang Chen |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 37 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |