Laser plasma shockwave cleaning of SiO2 particles on gold film

Influence of oil contamination on the optical performance and laser induced damage of fused silica

“…For oil on output surface, since the maximum of electrical is located in oil droplets, the air above the surface of fused silica is ionized by the local intense field, and the plasma shock wave is produced after ionization. Therefore, it has a "laser clean" effect, and some oil droplets on output surface will be removed by the shock wave before fused silica damaged [22]. Therefore, the LIDT for oil on output surface is higher than oil on input surface at same contamination.…”

Particulate contaminants removal on sol-gel film using 355 nm pulsed-laser

“…Cetinkaya 等人 [16] 对 吸附在单晶硅表面的微米级 SiO 2 颗粒和聚苯乙烯颗 http://engine.scichina.com/doi/10.1360/N092016-00111 图 3 清洗效率与瞄准距的关系 粒进行研究, 当 d 在 3 mm 之内时颗粒才有移除现象. 叶亚云 [9] 和 Ye 等人 [17] [18] . 冲 击波清洗倾向于克服平行于表面方向的黏附力, 清 洗效果来源于冲击波的冲量导致的微粒沿表面的滚 动, 最终将其从表面抛离.…”

Optical probe investigation of laser ablated carbon plasma plume in nitrogen ambient

“…Figure 8 shows the C 2 band sequence corresponding to Dv ¼ 1, 0, and À1. (4)(5) at 547 nm is shown in Figure 8(c). The temporal evolution of C 2 band sequence corresponding to Dv ¼ 1 is shown in Figure 9.…”

“…[1][2][3][4][5] Plume dynamics and plasma parameters, viz., electron density, electron temperature, velocity of expansion, etc. play an important role in optimization of plasma properties for various applications depending on the laser parameters like wavelength, pulse-width, and irradiance used including the thermo-physical properties of the target material and the ambient conditions.…”