Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver,British Columbia V6T 1Z1, Canada.
Opt Lett. 2009 Aug 15;34(16):2447-9. doi: 10.1364/ol.34.002447.
We introduce an AgGaGeS(4) crystal for sum-frequency generation in cross-correlation frequency-resolved optical gating (XFROG) to characterize mid-IR femtosecond laser pulses between the wavelengths of 3 microm and 11 microm. The performance of the AgGaGeS(4) crystal was examined by comparing it with a LiNbO(3) crystal, which has been frequently used in the near- to mid-IR region. We can obtain XFROG images by the AgGaGeS(4) crystal with efficiency 30 times greater than LiNbO(3) at the wavelength of 5 microm.
我们介绍了一种用于交叉相关频率分辨光门（XFROG）中的和频产生的 AgGaGeS(4) 晶体，用于对 3 微米到 11 微米波长的中红外飞秒激光脉冲进行特性描述。通过与经常用于近中红外区域的 LiNbO(3) 晶体进行比较，对 AgGaGeS(4) 晶体的性能进行了检验。我们可以用 AgGaGeS(4) 晶体在 5 微米波长处获得比 LiNbO(3) 晶体效率高 30 倍的 XFROG 图像。
