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 language | English |
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Article number | 011906 |
Pages (from-to) | 011906-1-011906-3 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 88 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2006 |