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An experiment investigating the photorefractive response time of Rb-doped KNbO3 crystal has been performed after proton implantation. Only one type of photorefractive grating was observed in this experiment. The experimental results show that B-ion implantation is more effective in speeding up the photorefractive response of KNbO3:Rb crystals than proton implantation. This phenomenon has been analysed in terms of the carrier density.
Inspec keywords: boron; diffraction gratings; rubidium; carrier density; photorefractive materials; ion implantation; potassium compounds
Other keywords:
Subjects: Light-sensitive materials; Gratings, echelles; Optical materials; Doping and implantation of impurities