Sorting full angular momentum states with Pancharatnam-Berry metasurfaces based on spiral transformation

Baiming Wang, Yuanhui Wen, Jiangbo Zhu, Yujie Chen*, Siyuan Yu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
11 Downloads (Pure)

Abstract

Full angular momentum states constitute a complete and higher state space of a photon, which are significant not only for fundamental study of light but also for practical applications utilizing cylindrical optics such as optical fibers. Here we propose and demonstrate a simple yet effective scheme of combining the spiral transformation with Pancharatnam-Berry (PB) metasurfaces for high-resolution sorting of full angular momentum states. The scheme is verified by successfully sorting full angular momentum states with 7 orbital angular momentum states and 2 spin angular momentum states via numerical simulations and experiments. We expect that our work paves the way for simple high-resolution sorting of full angular momentum states, which could be highly useful in both classical and quantum information systems.

Original languageEnglish
Pages (from-to)16342-16351
Number of pages10
JournalOptics Express
Volume28
Issue number11
Early online date14 May 2020
DOIs
Publication statusPublished - 25 May 2020

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