Near-mid infrared emission in Ce<sup>3 +</sup>and Tm<sup>3 +</sup>co-doped oxyfluoride glasses by excited at different wavelengths light

Publication Type:
Journal Article
Citation:
Journal of Non-Crystalline Solids, 2014, 391 pp. 49 - 53
Issue Date:
2014-05-01
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A novel approach has been proposed to realize enhanced near-mid infrared emission in Ce3 +and Tm3 +co-doped oxyfluoride glasses excited at different wavelengths, whereby Ce3 +absorbs the photons in ultraviolet region and transfers the energy to Tm3 +, while Tm3 +converts the energy in visible and near infrared region into near-mid infrared region. For the purpose to achieve efficient near-mid infrared emission, ligand field theory has been adopted to optimize the glass host composition. The excitation, emission, time-resolved emission spectra and fluorescence decay curves have been measured to investigate the energy transfer (ET) from Ce3 +to Tm3 +and the generation mechanism of near-mid infrared emission. This approach will be of reference value for designing the gain medium of the near-mid infrared laser excited directly by the sunlight. © 2014 Published by Elsevier B.V.
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