1. β alumina, a typical solid electrolyte
2. Recent developments in β″ alumina
3. Nd^3+ beta″ alumina platelet laser
4. 4.|A. J. Alfrey, O. M. Stafsudd, D. L. Yang, B. Dunn, and L. Salmon, submitted for publication.
5. 5.|B. Dunn, J. O. Thomas, and G. C. Farrington, “Spectral Properties of Solid-State Laser Type Materials” (B. D. Bartolo, Ed.), Plenum, New York, in press.