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.
Kang R, Liu J, Xue G, Li X, Pi D, Wang Y.Kang R, et al. Among authors: pi d.Opt Express. 2019 May 13;27(10):14369-14380. doi: 10.1364/OE.27.014369.Opt Express. 2019.PMID: 31163887Free article.
Pi D, Liu J, Kang R, Zhang Z, Han Y.Pi D, et al.Opt Express. 2019 Sep 30;27(20):28410-28422. doi: 10.1364/OE.27.028410.Opt Express. 2019.PMID: 31684594Free article.
Pi D, Liu J, Han Y, Khalid AUR, Yu S.Pi D, et al.Opt Express. 2019 Dec 23;27(26):37337-37348. doi: 10.1364/OE.27.037337.Opt Express. 2019.PMID: 31878516Free article.
Pi D, Liu J, Han Y, Yu S, Xiang N.Pi D, et al.Opt Express. 2020 Mar 30;28(7):9833-9841. doi: 10.1364/OE.385388.Opt Express. 2020.PMID: 32225583Free article.
Kang R, Liu J, Pi D, Duan X.Kang R, et al. Among authors: pi d.Opt Express. 2020 Apr 13;28(8):11290-11300. doi: 10.1364/OE.390199.Opt Express. 2020.PMID: 32403643Free article.