On-chip noninterference angular momentum multiplexing of broadband light

Ren, H, Li, X, Zhang, Q and Gu, M 2016, 'On-chip noninterference angular momentum multiplexing of broadband light', Science, vol. 352, no. 6287, pp. 805-809.


Document type: Journal Article
Collection: Journal Articles

Title On-chip noninterference angular momentum multiplexing of broadband light
Author(s) Ren, H
Li, X
Zhang, Q
Gu, M
Year 2016
Journal name Science
Volume number 352
Issue number 6287
Start page 805
End page 809
Total pages 5
Publisher American Association for the Advancement of Science
Abstract Angular momentum division has emerged as a physically orthogonal multiplexing method in high-capacity optical information technologies. However, the typical bulky elements used for information retrieval from the overall diffracted field, based on the interference method, impose a fundamental limit toward realizing on-chip multiplexing. We demonstrate noninterference angular momentum multiplexing by using a mode-sorting nanoring aperture with a chip-scale footprint as small as 4.2 micrometers by 4.2 micrometers, where nanoring slits exhibit a distinctive outcoupling efficiency on tightly confined plasmonic modes. The nonresonant mode-sorting sensitivity and scalability of our approach enable on-chip parallel multiplexing over a bandwidth of 150 nanometers in the visible wavelength range. The results offer the possibility of ultrahigh-capacity and miniaturized nanophotonic devices harnessing angular momentum division.
Subject Nanophotonics
Photonics, Optoelectronics and Optical Communications
DOI - identifier 10.1126/science.aaf1112
Copyright notice © 2016 American Association for the Advancement of Science
ISSN 0036-8075
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