ＳｉＯ2单层光学薄膜,经低于其破坏阈值的脉冲Ｎｄ3+∶ＹＡＧ激光预处理后,薄膜的抗激光损伤阈值可达到未处理前的两倍或两倍以上[1,2],而对于ＨｆＯ2单层光学薄膜脉冲Ｎｄ3+∶ＹＡＧ激光预处理的效果却比ＳｉＯ2薄膜有显著差异(图1所示).对于光学薄膜,激光预处理提高抗激光损 SiO2 single-layer optical thin film, the laser damage threshold of the film can reach twice or more than that of the untreated Nd3 +: YAG laser pre-treated by the pulsed Nd3 +: YAG laser below its damage threshold [1, 2] Layer optical thin film pulsed Nd3 +: YAG laser pretreatment effect than the SiO2 film was significantly different (Figure 1) .For the optical film, the laser pretreatment to improve anti-laser damage