Funding for this research was provided by:
National Natural Science Foundation of China (NSFC) (61622109)
Natural Science Foundation of Zhejiang Province of China (R18F010008)
Natural Science Foundation of Ningbo (2017A610112)
This article is maintained by: OSA - The Optical Society
Crossref DOI link to publisher maintained version: https://doi.org/10.1364/AO.57.007287
Article type: research-article
Similarity check: Screened by Similarity Check
Peer review
Peer reviewed: Yes
Review process: Single blind
Publication History
Received: 29 May 2018
Accepted: 4 August 2018
Published: 28 August 2018
Copyright: © 2018 Optical Society of America