R.M. Macfarlane, R.M. Shelby, et al.
Physical Review B
An upconversion pumping scheme was used to produce cw laser action at 0.55 μm in YAlO3+ at temperatures up to 77 K on the 4S3/2→4I 15/2 transition. Two infrared dye lasers at 792.1 and 839.8 nm were used as the pump sources for stepwise two-photon excitation of the 4S3/2 upper laser level at 18 406 cm-1. The laser operates in the fundamental TEM00 mode, and a cw output power of ∼1 mW was achieved with ∼200 mW pump power from each infrared dye laser.
R.M. Macfarlane, R.M. Shelby, et al.
Physical Review B
R.M. Macfarlane, T.L. Harris, et al.
QELS 1997
R. Wannemacher, R.S. Meltzer, et al.
Journal of Luminescence
Jonathan Ashley, M.-P. Bernal, et al.
CLEO 1996