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C. BENHAMIDECHE1, A. BOUTARFAIA2, MARCEL POULAIN3,*
Fluoroaluminate glasses in the AlF3-YF3-PbF2-CaF2-MgF2, AlF3-YF3-PbF2-SrF2-MgF2 and AlF3-YF3-PbF2-BaF2-MgF2 systems have been doped with 0.2 and 0.3 mol % CrF3 and their optical absorption has been studied. The absorption spectrum displays two strong and broad bands corresponding to the electronic transitions 4A2g (4F) => 4T2g (4F) and 4A2g (4F) => 4T1g (4F) of the Cr 3+ ions in a nearly octahedral environment. Crystal field and Raccah parameters were determined. They depend on the nature of the earth alkali cation and also on chromium concentration, which suggests that local field and covalent character also change.
Fluoride glass, Aluminium fluoride, Optical properties.
C. BENHAMIDECHE, A. BOUTARFAIA, MARCEL POULAIN, Optical absorption of AlF3-YF3-PbF2-MF2-MgF2 (M= Ca, Sr and Ba) glasses doped with chromium ions, Optoelectronics and Advanced Materials - Rapid Communications, 3, 4, April 2009, pp.317-319 (2009).
Submitted at: March 20, 2009
Accepted at: April 23, 2009
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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