Aa. Kaminskii et al., NEW STIMULATED-EMISSION CHANNELS OF PR3+ AND TM3+ IONS IN MONOCLINIC KR(WO4)(2) TYPE CRYSTALS WITH ORDERED STRUCTURE (R=Y AND GD), JPN J A P 2, 36(2A), 1997, pp. 107-109
We report the spectroscopic and experimental data of new laser channel
s of pr(3+) and Tm3+ ions in monoclinic tungstates. We discovered and
identified a new one-micron laser action at 1.0223 mu m of D-1(2)-->F-
3(3) transition of pr(3+) ions in monoclinic KY(WO4)(2) crystal at roo
m temperature. At cryogenic temperature, two-micron lasing of Tm3+ ion
s at wavelength of about 1.92 and 1.93 mu m were excited in two sensit
ized crystals, KY(WO4)(2):Er3+ and KGd(WO4)(2):Er3+:Yb3+, respectively
.