Max-Born-Institute for Nonlinear Optics and Ultrafast Spectroscopy, 2A Max-Born-Strasse, D-12489 Berlin, Germany.
Opt Lett. 2012 Oct 1;37(19):4146-8. doi: 10.1364/OL.37.004146.
The orthorhombic biaxial crystal BaGa(4)S(7) has been employed in a 1064 nm pumped optical parametric oscillator generating <6 ns long idler pulses with energies as high as 0.5 mJ at 6.217 μm and average power of ~50 mW at 100 Hz. Notwithstanding the relatively low nonlinearity, ~3 times above threshold operation has been achieved at pump intensities more than 5 times below the crystal surface damage limit.
正方双轴晶体 BaGa(4)S(7) 被应用于 1064nm 泵浦的光参量振荡器，产生了 6ns 长的闲频光脉冲，在 6.217μm 处能量高达 0.5mJ，在 100Hz 时平均功率约为 50mW。尽管非线性度相对较低，但在泵浦强度低于晶体表面损伤阈值 5 倍以上的情况下，仍实现了超过阈值 3 倍的运行。
