Picture of DNA strand

Pioneering chemical biology & medicinal chemistry through Open Access research...

Strathprints makes available scholarly Open Access content by researchers in the Department of Pure & Applied Chemistry, based within the Faculty of Science.

Research here spans a wide range of topics from analytical chemistry to materials science, and from biological chemistry to theoretical chemistry. The specific work in chemical biology and medicinal chemistry, as an example, encompasses pioneering techniques in synthesis, bioinformatics, nucleic acid chemistry, amino acid chemistry, heterocyclic chemistry, biophysical chemistry and NMR spectroscopy.

Explore the Open Access research of the Department of Pure & Applied Chemistry. Or explore all of Strathclyde's Open Access research...

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

Full text not available in this repository.Request a copy from the Strathclyde author

Abstract

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: