Figure 1|Cascading upconversion amplification effect based on the MLA/Au NRs/CSS UCNCs hybrid structure. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 1|Cascading upconversion amplification effect based on the MLA/Au NRs/CSS UCNCs hybrid structure.

Caption

a, Schematic illustration of the cascading amplification strategy for UCNCs. b, UC emission spectra of CSS UCNCs recorded under 808, 980 and 1540 nm laser excitation, respectively. (Inset) Corresponding photos of the CSS UCNCs films upon illumination of three kinds of lasers. c, Enhancement factors for Au NRs/CSS, MLA-1/CSS, MLA-1/Au NRs/CSS composites under separately 808, 980, and 1540 nm excitation.

Credit

by Yanan Ji, Wen Xu, Nan Ding, Haitao Yang, Hongwei Song, Qingyun Liu, Hans Ågren, Jerker Widengren, Haichun Liu

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