聚焦光学系统光学限制效应的分析

本文利用高斯分解法给出了聚焦光学系统中光学非线性介质引起的光学限制效应，以及几何排布对其的影响。结果表明，近场几何排布下的光学限制效应十分不同于远场情况。具有正非线性系数的介质是不能用来做光学限制介质的。

Analysis on Optical Limiting in Focused Optical System

This paper presents the optical limiting and its dependence of the geometrical arrangement in the focused optical system by employing the Gaussian decomposition method.The results show that optical limiting in near field arrangement is very different from that in far field arrangement,and the nonlinear materials with positive nonlinear coefficient are not suitable to be used as the optical limiting materials.Meanwhile,the analysis also shows that the sensitivity of Z scan technique with the focused optical system is higher than that of common Z scan technique.