Funding for this research was provided by:
National Natural Science Foundation of China (NSFC) (11704123, 11874040, 61775059)
Foundation for leading talents of Minhang, Shanghai
This article is maintained by: OSA - The Optical Society
Crossref DOI link to publisher maintained version: https://doi.org/10.1364/OL.43.005913
Article type: letter
Similarity check: Screened by Similarity Check
Peer review
Peer reviewed: Yes
Review process: Single blind
Publication History
Received: 24 October 2018
Accepted: 19 November 2018
Published: 3 December 2018
Copyright: © 2018 Optical Society of America