Catenary optics for achromatic generation of perfect optical angular momentum

Pu, M, Xiong, L, Ma, X, Wang, Y, Zhao, Z, Wang, C, Hu, C, Gao, P, Huang, C, Ren, H, Li, X, Qin, F, Yang, J, Gu, M, Hong, M and Luo, X 2015, 'Catenary optics for achromatic generation of perfect optical angular momentum', Science Advances, vol. 1, no. 9, e1500396, pp. 1-7.

Document type: Journal Article
Collection: Journal Articles

Title Catenary optics for achromatic generation of perfect optical angular momentum
Author(s) Pu, M
Xiong, L
Ma, X
Wang, Y
Zhao, Z
Wang, C
Hu, C
Gao, P
Huang, C
Ren, H
Li, X
Qin, F
Yang, J
Gu, M
Hong, M
Luo, X
Year 2015
Journal name Science Advances
Volume number 1
Issue number 9
Article Number e1500396
Start page 1
End page 7
Total pages 7
Publisher American Association for the Advancement of Science (A A A S)
Abstract The catenary is the curve that a free-hanging chain assumes under its own weight, and thought to be a "true mathematical and mechanical form" in architecture by Robert Hooke in the 1670s, with nevertheless no significant phenomena observed in optics. We show that the optical catenary can serve as a unique building block of metasurfaces to produce continuous and linear phase shift covering [0, 2p], a mission that is extremely difficult if not impossible for state-of-the-art technology. Via catenary arrays, planar optical devices are designed and experimentally characterized to generate various kinds of beams carrying orbital angular momentum (OAM). These devices can operate in an ultra-broadband spectrum because the anisotropic modes associated with the spin-orbit interaction are almost independent of the incident light frequency. By combining the optical and topological characteristics, our approach would allow the complete control of photons within a single nanometric layer.
Subject Biomedical Engineering not elsewhere classified
DOI - identifier 10.1126/sciadv.1500396
Copyright notice 2015 © The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC)
ISSN 2375-2548
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