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.
Tu X, Wu X, Li M, Liu L, Xu L.Tu X, et al. Among authors: xu l.Opt Express. 2012 Aug 27;20(18):19996-20001. doi: 10.1364/OE.20.019996.Opt Express. 2012.PMID: 23037052Free article.
Li M, Wu X, Liu L, Xu L.Li M, et al. Among authors: xu l.Opt Express. 2013 Jul 15;21(14):16908-13. doi: 10.1364/OE.21.016908.Opt Express. 2013.PMID: 23938539Free article.
Lu Q, Wu X, Liu L, Xu L.Lu Q, et al. Among authors: xu l.Opt Express. 2015 Aug 24;23(17):22740-5. doi: 10.1364/OE.23.022740.Opt Express. 2015.PMID: 26368242Free article.
Lu Q, Li M, Liao J, Liu S, Wu X, Liu L, Xu L.Lu Q, et al. Among authors: xu l.Opt Lett. 2015 Dec 15;40(24):5842-5. doi: 10.1364/OL.40.005842.Opt Lett. 2015.PMID: 26670526
Lu Q, Liao J, Liu S, Wu X, Liu L, Xu L.Lu Q, et al. Among authors: xu l.Opt Express. 2016 Sep 5;24(18):20855-61. doi: 10.1364/OE.24.020855.Opt Express. 2016.PMID: 27607689Free article.