An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Yi J, Wei Q, Liu W, Backman V, Zhang HF.Yi J, et al. Among authors: zhang hf.Opt Lett. 2013 Jun 1;38(11):1796-8. doi: 10.1364/OL.38.001796.Opt Lett. 2013.PMID: 23722747Free PMC article.
Song W, Wei Q, Liu W, Liu T, Yi J, Sheibani N, Fawzi AA, Linsenmeier RA, Jiao S, Zhang HF.Song W, et al. Among authors: zhang hf.Sci Rep. 2014 Oct 6;4:6525. doi: 10.1038/srep06525.Sci Rep. 2014.PMID: 25283870Free PMC article.
Liu W, Li H, Shah RS, Shu X, Linsenmeier RA, Fawzi AA, Zhang HF.Liu W, et al. Among authors: zhang hf.Opt Lett. 2015 Dec 15;40(24):5782-5. doi: 10.1364/OL.40.005782.Opt Lett. 2015.PMID: 26670511Free PMC article.