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. 2016 Jan 7;6:18894. doi: 10.1038/srep18894

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Rise of UCNPs emission at 1002 nm on silver nanograting (a) and on silver film (b). The experimentally measured rise curve is normalized to steady state PL intensity and then subtracted from unity, . The legends describe the excitation power density and the measured rise time.

Inline graphic — Rise of UCNPs emission at 1002 nm on silver nanograting (a) and on silver film (b). The experimentally measured rise curve is normalized to steady state PL intensity and then subtracted from unity, . The legends describe the excitation power density and the measured rise time.