Abstract

By investigating light-induced charge changes of defects in BaTiO3 (BT) and Ba0.77Ca0.23TiO3 (BCT), using a combination of EPR and fast optical absorption spectroscopy at low and room temperature, we identify the charge transfer paths and their properties for the following systems: BT:Fe, BCT:Fe, BT:Cr and BT:Rh. In the latter case it is proved that codoping with Na increases the infrared response and the photorefractive speed of the material.

© 1999 Optical Society of America

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription