高重复频率激光对光学材料损伤特性的研究  

Optical Damage Study of Materials with High Repetitive Laser Pulses Irradiation

作　　者：龚辉[1] 李成富[1] 崔俊文[1] 葛月明[1] 

机构地区：[1]中国科学院上海光学精密机械研究所

出　　处：《光学学报》1996年第2期228-231,共4页Acta Optica Sinica

摘　　要：研究了几种红外窗口材料的高重复频率Ｎｄ∶ＹＡＧ激光和Ｃｕ蒸气激光体损伤规律，发现样品损伤有明显积累效应。经过分析，发现高重复频率激光损伤是一个微观损伤积累过程，并引入吸收元的概念，建立了一个简单的损伤积累模型。利用激光预辐照技术。Optical damage of several kinds of infrared window materials with 1.06 μm and 0.5106 μm high repetitive laser pulses irradiation has been studied. Mechannism of laser damage is considered as laser induced defect development accumulation process. We first recommend a concept of an absorber and establish a simple model to verify this process. To increase resistance of infrared window materials to the repetitive laser pulses damage, a laser pre irradiation technique is used.

关 键 词：高重复频率 激光损伤 激光预辐照 光学材料 

分 类 号：TN204[电子电信—物理电子学] TN24