Realization and infrared to green upconversion luminescence in Er~(3+):YAlO_3 ion-implanted optical waveguides

摘要

The light ion implantation technique is applied to perform several planar and channel waveguides in 1 at.% Er~(3+)doped YAlO_3 single crystal. Waveguides of different dimensions are obtained using different doses and energies of H~+ or He~+. Under cw infrared sapphire-titanium laser excitation, the guided green upconverted luminescence of Er~(3+) is studied. It is the result of an excited state absorption mechanism and its intensity increases with the light ion dose used for the waveguide fabrication.