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按照防护原理，可将激光防护材料分为基于线性光学理论的防护材料和基于非线性光学理论的防护材料。综述了基于非线性光学理论的多种激光防护方法及其防护原理，介绍了基于非线性光学理论的多种新型防护材料及其研究进展，比较了四种基于非线性光学理论的激光防护方法的优、缺点，简短地分析了激光防护材料今后发展的基本方向。
According to the principle of protection, laser protection materials can be divided into protective materials based on linear optical theory and non-linear optical theory based protective materials. A variety of laser protection methods and their protection principles based on nonlinear optical theory are reviewed. A number of new protective materials and their research progress based on nonlinear optical theory are introduced. Four laser protection methods based on nonlinear optical theory are compared Excellent, shortcomings, a brief analysis of the basic direction of the future development of laser protective materials.