Speckle-driven single-shot orbital angular momentum recognition with ultra-low sampling density
Zhiyuan Wang, Haoran Li, Tianting Zhong, Qi Zhao, Vinu R V, Huanhao Li, Zhipeng Yu, Jixiong Pu, Ziyang Chen, Xiaocong Yuan, Puxiang Lai · 2025
Read Speckle-driven single-shot orbital angular momentum recognition with ultra-low sampling density by Zhiyuan Wang, Haoran Li, Tianting Zhong, Qi Zhao, Vinu R V, Huanhao Li, Zhipeng Yu, Jixiong Pu, Ziyang Chen, Xiaocong Yuan, Puxiang Lai (2025) 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-12700884.txt.
Description
Zhiyuan Wang and ten co-authors present a way to read twisted light beams after they pass through scattering material, in a 2025 paper. Such beams carry orbital angular momentum, a property useful for communications and quantum tools. Scattering normally scrambles the beam, and standard readers need sensors with tens of thousands of pixels. The team instead treats the scattering itself as an encoder of the beam's features.
Their method samples light at just a few points in the speckle pattern that forms after scattering. Because the beam's features are spread across that pattern, a few points carry enough information to name the twist. The approach cuts sensor needs sharply and turns a problem into an advantage, which could suit fiber-based links.
Catalog record
| CREATOR | Zhiyuan Wang, Haoran Li, Tianting Zhong, Qi Zhao, Vinu R V, Huanhao Li, Zhipeng Yu, Jixiong Pu, Ziyang Chen, Xiaocong Yuan, Puxiang Lai |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 35 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |