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Liu, Jing, Ruitao Wu, Nana Li, Xin Zhang, Qiuqiang Zhan, a Sailing He. "Deep, High Contrast Microscopic Cell Imaging Using Three-photon Luminescence of β-(NaYF(4): Er(3+)/NaYF(4)) Nanoprobe Excited By 1480-nm CW Laser of Only 1.5-mW." Biomed Opt Express 2015.

Liu, Jing, et al. "Deep, High Contrast Microscopic Cell Imaging Using Three-photon Luminescence of β-(NaYF(4): Er(3+)/NaYF(4)) Nanoprobe Excited By 1480-nm CW Laser of Only 1.5-mW." Biomed Opt Express 2015.