制备了吸收波长为2 μm的银纳米棒(ANRs), 并将其作为可饱和吸收体应用于2 μm被动调Q激光器中。采用结构紧凑的直线腔设计, 实现了稳定的激光二极管抽运2 μm被动调Q脉冲激光运转。在吸收抽运功率为5.73 W的情况下, 获得的调Q平均输出功率为118 mW, 重复频率和脉冲宽度分别为24.32 kHz和1.455 μs。

Argentum nanorods (ANRs) with the absorption wavelength of 2 μm are prepared and employed as a saturable absorber in a 2 μm passively Q-switched laser. A laser diode (LD) pumped by 2 μm passively Q-switched laser is designed with a compact linear cavity. When the absorbed pump power is 5.73 W, average output power of 118 mW, repetition rate of 24.32 kHz and pulse width of 1.455 μs are obtained.