Optical bleaching of Cr3+ luminescence in near stoichiometric LiNbO3 crystals codoped with MgO
Han, T.P.J. and Jaque, F. and Arizmendi, L. and Bermudez, V. and Suchocki, A. (2004) Optical bleaching of Cr3+ luminescence in near stoichiometric LiNbO3 crystals codoped with MgO. Journal of Luminescence, 108. pp. 55-58. ISSN 0022-2313 (http://dx.doi.org/10.1016/j.jlumin.2004.01.010)
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The emission intensity of the R-line of Cr3þ ions in near stoichiometric LiNbO3crystals codoped with MgO has been studied at a low temperature under excitation of the 4A2-4T1 transition. The R-line emission intensity associated with Cr3þ ions in the Nb5þ site, ½CrNb centre, was observed to decrease with the illumination time whereas the Cr3þ ions located in the Li site, ½CrLi centres, are optically stable. This selective bleaching is explained by considering the photoionization of Cr3þ ions in Nb5þ sites and the formation of Nb4þ:
ORCID iDs
Han, T.P.J.
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Item type: Article ID code: 2941 Dates: DateEventJune 2004PublishedSubjects: Science > Physics > Solid state physics. Nanoscience Department: Faculty of Science > Physics Depositing user: Strathprints Administrator Date deposited: 22 Feb 2007 Last modified: 29 Jan 2025 19:30 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/2941