物理参数对光限幅效应的影响

为了对抗日益严重的激光武器威胁，需要了解激光防护材料的光学性能。该文根据非线性吸收模型，推导出光限幅阈值表达式。并以表达式为理论依据，利用配位聚合物［Cd(L4)(SO4)(H2O)2］n在波长532nm、脉冲宽度为40ps的条件下所获得的实验数据，分析研究非线性吸收参数、线性透过率和有效激发态吸收截面等物理参数对光限幅效应的影响。以此为基础，研究了激光防护材料的非线性光学特性和光限幅特性，为制备光限幅材料提供了理论和实验依据。

The influence of optical physics parameters on optical limiting effect

A mathematical expression for the optical limiting threshold is derived according to the nonlinear absorption model.Based on the theoretical expression,the influence of optical physics parameters on the optical limiting effect,such as nonlinear absorption parameter,linear transmissivity and effective excited-state absorption cross-section,were investigated with the experimental data obtained at the wavelength of 532 nm and in the pulse width of 40 ps by means of coordination polymerCd(L_4)(SO_4)(H_2O)_2]n.The research on the nonlinear optical properties and the optical limiting characteristics of the laser protection material provides the theoretical and experimental bases for preparing the much better optical limiting material.