Fluorescence upconversion in Sm-doped Gd 2O 3

D. Dosev, I. M. Kennedy, M. Godlewski, I. Gryczynski, K. Tomsia, E. M. Goldys

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Abstract

We report the observation of efficient fluorescence upconversion in Sm-doped Gd 2O 3 nanopowders prepared by the spray pyrolysis method. The blue upconversion emission was observed with low-power continuous-wave excitation at 514, 561, 594, and 633 nm and with a pulsed femtosecond at 710 nm, in a laser scanning confocal microscope. This result indicates that Sm-doped Gd 2O 3 has the potential as a fluorescent label that may be excited in red, yellow, and green with blue emission.

Original languageEnglish
Article number011906
JournalApplied Physics Letters
Volume88
Issue number1
DOIs
StatePublished - 2006

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