Funding for this research was provided by:
U.S. Department of Energy (DOE) (DE-FE0029059)
This article is maintained by: OSA - The Optical Society
Crossref DOI link to publisher maintained version: https://doi.org/10.1364/OL.42.002770
Article type: letter
Similarity check: Screened by Similarity Check
Peer review
Peer reviewed: Yes
Review process: Single blind
Publication History
Received: 26 May 2017
Accepted: 13 June 2017
Published: 11 July 2017
Copyright: © 2017 Optical Society of America