Control of Green and Red Upconversion in NaYF₄:Yb³⁺,Er³⁺ Nanoparticles by Excitation Modulation.

ABSTRACT: Control of the two strongest upconversion emission lines in NaYF₄:Yb³⁺, Er³⁺ nanoparticles is demonstrated by varying the excitation repetition rate. This technique may enable new multiplexed sensing modalities based on multicolor luminescent nanoparticles, currently contemplated for biomedical imaging and diagnostics.

SUBMITTER: Gainer CF 

PROVIDER: S-EPMC3587784 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature