Abstract
The absorption and emission spectra and the luminescence kinetics of the potential crystal for holographic recording and optical data storage, were studied at room and liquid-nitrogen temperatures. The spectroscopic properties of were compared with those of and It was found that a single-site occupancy of ions in and at room temperature changes to a multisite occupancy at low temperature. Possible reasons for such a transformation are discussed. The parameters Dq and B in were determined to be 2115 and 680 correspondingly.
© 1999 Optical Society of America
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