利用 AgGaGeS(4) 晶体进行中红外飞秒激光脉冲的互相关频率分辨光闸法测量。

Cross-correlation frequency-resolved optical gating for mid-infrared femtosecond laser pulses by an AgGaGeS(4) crystal.

机构信息

Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver,British Columbia V6T 1Z1, Canada.

出版信息

Opt Lett. 2009 Aug 15;34(16):2447-9. doi: 10.1364/ol.34.002447.

DOI:10.1364/ol.34.002447

PMID:19684811

Abstract

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.

摘要

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。