Experiments on laser cleaning of sooted optical windows
Experiments on laser cleaning of sooted optical windows
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DOI：
10.1364/ao.57.010522
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发表时间：
2018-12-20
期刊：
影响因子：
1.9
通讯作者：
Namba, Shin-ichi
中科院分区：
文献类型：
--
作者：
Endo, Takuma;Okada, Kazuki;Namba, Shin-ichi
为了开发激光点火技术，对透明玻璃板进行人工烟灰，并分别从正面（烟灰）和背面用激光重复照射。一般来说，背面照射在去除烟灰方面更有效。然而，经过数千次激光照射后，消光效果已经饱和。尽管饱和烟灰量是每脉冲激光注量的递减函数，但其大小对于正面和背面照射都保持相同。在研究迄今为止提出的几种烟灰去除机制时，发现激光加热烟灰引起的流动产生的空气动力是最合理的机制。 (C) 2018年美国光学学会
To develop laser-ignition technology, transparent glass plates were artificially sooted and irradiated repetitively by laser from the front (sooted) and back sides separately. Generally, the back-side irradiation was more effective at soot removal. However, the deaning effect was saturated after thousands of laser shots. Although the saturated soot quantity was a decreasing function of the laser fluence per pulse, its magnitude remained the same for both front-side and back-side irradiations. In examining several soot-removal mechanisms proposed so far, it was found that the aerodynamic force produced by the flow induced by the laser heating of the soot was the most plausible mechanism. (C) 2018 Optical Society of America