Optical absorption of ion-conducting glasses as transformed from ac data

For a condensed medium, optical data and electrical data can be transformed to each other. A general procedure for calculating an optical absorption c oefficient from ac data was given. Tests were made for two ion conducting g lasses using ac data near the frequencies of relaxation for conduction, abo ve the frequencies of which the ionic conductivities are expected to decrea se. (C) 2001 Kluwer Academic Publishers.