I. Freitag

Optimizing non-resonant frequency conversion in periodically poled media

F. Laurell, S. Spiekermann, V. Pasiskevicius, 2004 .

Room-temperature Tm:YAG ring laser with 150 mW single-frequency output power at 2.02 [micro sign]m

Cesare Svelto, C. Svelto, I. Freitag, 1999 .