Visible Discrimination of Broadband Infrared Light by Dye-Enhanced Upconversion in Lanthanide-Doped Nanocrystals

Figure 10

Power dependence of dye-induced upconversion of NaYF₄:Yb³⁺, Ho³⁺ with DY-831 dye under excitation of dye at 819 nm and 785 nm, blue diamonds and brown squares respectively (a); Power dependence of dye-induced upconversion of NaYF₄:Er³⁺ with DyL800 under excitation of dye at 785 nm (b).

(a)

(b)