利用PVDF压电传感器测量了激光冲击强化过程中不同参数组合形成的冲击波，研究了激光功率密度及波长对冲击波峰值压力的影响。结果表明，532nm的激光诱导产生的冲击波峰压在6.6GW/cm2达到最大值5GPa，此外，在同样的功率密度下，532nm激光产生的冲击波峰压较1064nm时要大。

The sol-ge1 organicmodified silica(SiO2:(CH3)2SiO=1:1)moisture-resistant(MR)and porous silicaantireflective (AIR)coatings were studied and developed for laser phosphate glasses in the national high laser systems.The stability of viscosity of MR coa ting solution an d AR colloidal suspension was researched .The surface reflection of coated phosphate glasses decre~ses 6.5％-7.5％.The laser damage threshold of coatings was 12 J/cm2，1 053 nm/1 ns.The coatings roughness(RMS) was 2.523 nm.

Using di-ethoxy-silicane as precursor，a colloidal prepolymer was developed from sol-gel process. With silica colloid as modifier，the modified moisture-resistant films were prepared on neodymium-doped phosphate glass by spin coating. When the mole ratio of di-ethoxy-silicane to silica was 1: 1，the films after cure had improved abrasion-resistance. RMS was 1. 245 nm，while laser-damage threshold value more than 15 J / cm2 at the condition of 1 053 nm，1 ns. After staying in a closed circumstance at 80 ℃ and 95%RH，the films had approximately constant transmission and contact angle. It indicates that the films have a stable hydrophobic structure，good moisture-resistance，improved abrasion-resistant feature and longer service life.

(CH3)2Si(OC2H5)2 as precursor, a sol of good stability is prepared by sol-gel method and organic synthesization. After the sol is coated it on phosphate laser glass by rotating way, moistureproof film is worked out, having a transmittance of 96.5% after heated. The film has a good morphology, roughness of mean square (RMS) of 1.659 nm and roughness of average (RA) of 1.321 nm. The damaged threshold of the moistureproof film is high to 10～14 J/cm2, tested by a laser of wavelength of 1053 nm and pulse width of 1 ns. In the period of 5 years on “Shenguang Ⅱ” high power laser equipment, it behaves good moistureproof performance , and tryouts on “Shenguang Ⅲ” model.

以(CH3)2Si(OC2H5)2为前驱体,采用溶胶凝胶与有机合成相结合的方法,制得稳定性良好的涂膜液。采用旋转涂膜法在掺钕磷酸盐激光玻璃棒端面涂制防潮膜,膜层固化后透过率达96.5%,获得的膜层表面粗糙度优良,均方根表面粗糙度(RMS)为1.659 nm,平均粗糙度(RA)平均为1.321 nm[在激光波长1053 nm,脉冲宽度1 ns条件下膜层的激光破坏阈值可达10～14 J/cm2。经过“神光Ⅱ”高功率激光器物理实验运行,膜层使用期为五年,并且已经在我国“神光Ⅲ”原型装置上试用。