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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 10,
  • Issue 9,
  • pp. 091602-091602
  • (2012)

Investigation of emission properties of Tm3+:Y2O3 transparent ceramic

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Abstract

A transparent and emitting ceramic of Y<sub>2</sub>O<sub>3</sub> doped with 6% Tm<sup>3+</sup> ions is fabricated by vacuum sintering with ZrO<sub>2</sub>. Absorption, photoluminescence (PL), and PL excitation (PLE) spectra are investigated in a spectral range of 200 to 2 100 nm at various temperatures between 296 and 12 K. Intense emission band appears at 450 to 465 nm in the visible range. Near-infrared emission bands are observed at 1 200 to 1 300 nm and 1 400 to 1 550 nm, with intense peaks at 1 270, 1 450, and 1 523 nm. The luminescence mechanisms and potential applications of the emissions are discussed with the help of Judd-Ofelt theory and PLE spectra.

© 2012 Chinese Optics Letters

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