Novel optoelectronic properties in oxides created by light

Abstract

We have investigated novel optoelectronic properties in oxides. At focus are photo-induced structural changes in strongly correlated electronic systems, which may occur though electronic excitation by light irradiation. Cu-based high-temperature superconducting oxides, which have the rich electronic and structural phase diagrams, are chosen as candidates for the pursuit of photo-induced structural changes. Photo-induced phase control with superconducting properties is established and applied for creating novel optoelectronic functions, such as optical memories and switches, as well as new fabrication procedures for superconducting components.