摘要随着高功率固体激光系统能量的提升和不断发展,生产对于光学元件的质量有着越来越高,越来越严格的要求。所以能够有效地检测光学元件亚表面缺陷对高阈值抗激光损伤光学元件制造来说是非常有必要的。
在对多种检测亚表面损伤的方法进行了简单的阐述后,最终选定使用全内反射显微技术。
光照射到缺陷上,当入射角大于等于临界角时会发生全反射,通过计算和仿真得出反射的s偏振和p偏振的光强强度以及波节距跟入射角的关系,根据这些关系就能推算出缺陷的深度尺寸。并对有一定长度的划痕的检测进行了讨论。21783
关键词 全内反射;亚表面缺陷;损伤检测技术; 毕业论文设计说明书(论文)外文摘要
Title Standing research-based total internal reflection microscopy to detect sub-surface defects in optical components
Abstract
With the high-power solid-state laser system energy improvement and continuous development,We demand quality of optical components could be better and better.Effectively detect subsurface defects in optical components has became an urgent demand of the High threshold resistance to laser damage of optical component manufacturing.
In this paper, have simple exposition of a variety of methods to detect subsurface damage, the final selection is using total internal reflection microscopy.
Polarized light is irradiated on the defect,When the angle of incidence greater than the critical angle,the total reflection will occur.Calculation and simulation the relationship of intensity of the reflected light intensity of s-polarized and p-polarized and angle of incidence and the relationship of wave pitch of angle of incidence.Thanbased on the relationships can be calculated the depth and size of the defect.And the detection of scratches is also be discussed.
Keywords Total internal reflection; subsurface defects; damage detection techniques
目 次