Title of article
Study of optical properties of Cr3+ ions in Cs2NaAlF6 single crystals
Author/Authors
Sosman، نويسنده , , L.P. and Tavares Jr، نويسنده , , A.D. and da Fonseca، نويسنده , , R.J.M. and Abritta، نويسنده , , T. and Khaidukov، نويسنده , , N.M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
5
From page
661
To page
665
Abstract
Emission and excitation spectra for Cs2NaAlF6:Cr3+ are presented. The near-infrared fluorescence observed at 77 and 4.2 K are attributed to the zero-phonon spin-forbidden transition 2E(2G)→4A2(4F) while at room-temperature the emission is assigned to the 2T2(2F)→4A2(4F) transition. Two non-equivalent octahedral sites are identified through time-resolved measurements and lifetime fluorescence bands are measured. The Racah and crystal-field parameters are calculated for both sites.
Keywords
D. Crystal and ligand fields , E. Luminescence , A. Insulators , D. Optical properties , E. Time-resolved optical spectroscopies
Journal title
Solid State Communications
Serial Year
2000
Journal title
Solid State Communications
Record number
1769416
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