Abstract
Previous studies [1,2] have found that the entire sodium ion content of sodium β″-alumina can readily be replaced by a variety of monovalent, divalent and trivalent cations. In several cases, it has been found that the resultant material has interesting optical properties in addition to fast ion transport. For example, Nd3+ ion exchanged β″-alumina single crystals have been found to exhibit both pulsed and cw laser action, as well as degenerate four-wave mixing [3,4]. The research on lanthanide β″-aluminas prompted our interest in the 3d-transition metals as candidates for exchange into β″-alumina. We have investigated several ions within this series and found them to exhibit broadband, vibronic transitions similar to that observed in other hosts [5].
© 1987 Optical Society of America
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