Journal of the American Chemical Society · 2009 · 282 citations · 26 references
Natural SciencesMaterials EngineeringMaterials ScienceOptical MaterialsOpticsPhotonicsLaser DiodesLaser PhysicsLuminescent MaterialsOptical SourcesOxide SemiconductorsUpconversion MaterialsExcitationExcitation ConditionsMultiphoton ExcitationPhoton Upconversion MaterialsUpconversion Luminescence
A new multiphoton upconversion process for rare earth oxide powders is reported, using infrared laser diodes. In vacuum, multiphoton excitation produces intense upconversion emission in the visible spectral range, and Tm(2)O(3) or Yb(2)O(3) achieves pure white upconversion using 808 or 975 nm excitation, respectively.
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