The absorption and emission spectra and the luminescence kinetics of Mn<sup>4+</sup>:YAlO<sub>3</sub>, the potential crystal for holographic recording and optical data storage, were studied at room and liquid-nitrogen temperatures. The spectroscopic properties of Mn:YAlO<sub>3</sub> were compared with those of Mn:GdAlO<sub>3</sub>, Mn:Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>, and Cr:YAlO<sub>3</sub>. It was found that a single-site occupancy of Mn<sup>4+</sup> ions in YAlO<sub>3</sub> and GdAlO<sub>3</sub> at room temperature changes to a multisite occupancy at low temperature. Possible reasons for such a transformation are discussed. The parameters <i>Dq</i> and <i>B</i> in Mn<sup>4+</sup>:YAlO<sub>3</sub> were determined to be 2115 and 680 cm<sup>−1</sup>, correspondingly.
© 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 and G. B. Loutts, "Spectroscopic studies of Mn4+ ions in yttrium orthoaluminate," J. Opt. Soc. Am. B 16, 3-11 (1999)