Figure 10.

Fluorescence from 3,000 to 5,500 nm from Tm3+-Pr3+:KPb2Cl5. Fluorescence resulting from 1,483-nm pumping of Tm3+-Pr3+:KPb2Cl5 compared to fluorescence resulting from 805-nm pumping. The sample has a Pr3+ concentration of 1.5 × 1020 ions/cm3 and a Tm3+ concentration of 3.0 × 1020 ions/cm3.

Ganem and Bowman Nanoscale Research Letters 2013 8:455   doi:10.1186/1556-276X-8-455
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