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Dynamics of visible-to-ultraviolet upconversion in YAlO3: 1% Er3+

Authors
Journal
Chemical Physics
0301-0104
Publisher
Elsevier
Publication Date
Volume
287
Identifiers
DOI: 10.1016/s0301-0104(02)00987-4
Disciplines
  • Physics

Abstract

Abstract The dynamics of visible-to-ultraviolet upconversion in YAlO 3: 1% Er 3+ crystal has been investigated using the time-resolved laser spectroscopy when the sample was excited into the 4 S 3/2 multiplets. It is found that the upconverted luminescence is produced by energy-transfer upconversion or by excited-state absorption depending on the excitation wavelength. The dependence of upconverted luminescence on pump power is presented, and the relative intensities of upconverted luminescence were accounted for by Judd–Ofelt theory.

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