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This article is maintained by: OSA - The Optical Society

Crossref DOI link to publisher maintained version: https://doi.org/10.1364/AO.57.0000E6

Article type: research-article

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Peer review

Peer reviewed: Yes

Review process: Single blind

Publication History

Received: 3 April 2018

Accepted: 18 May 2018

Published: 11 June 2018

Copyright: © 2018 Optical Society of America