The spectroscopic properties of Mn3+ and Mn2+ ions have been studied in Mn:YAlO3 codoped with Ce and singly Mn-doped YAlO3. Mn3+ absorption at the 5E→5T2 transition, the transition between the Jahn–Teller split components of the ground state 5E, and Fano antiresonance mixing between the 3E and 5T2 states have been investigated. The weak absorption at 0.41 μm was attributed to the 6A1→4A1, 4E transition of Mn2+. Green emission peaking at 530 nm excited with x rays was attributed to the 4T1→6A1 transition of Mn2+. The reduction of Mn2+ concentration in photoexposed samples may imply the presence of Mn+ ions in YAlO3.
© 1999 Optical Society of America
(160.2900) Materials : Optical storage materials
(160.6990) Materials : Transition-metal-doped materials
(210.4810) Optical data storage : Optical storage-recording materials
(300.1030) Spectroscopy : Absorption
(300.2140) Spectroscopy : Emission
M. A. Noginov, G. B. Loutts, and M. Warren, "Spectroscopic studies of Mn3+ and Mn2+ ions in YAlO3," J. Opt. Soc. Am. B 16, 475-483 (1999)