摘要
用搭建的微米谱域光学相干层析(SDOCT)系统对玻璃亚表面缺陷进行了深度分辨率、非接触、非破坏性测量,并用建立的单次散射模型对得到的断层图像进行计算,得到玻璃亚表面缺陷的散射系数。实验结果表明,利用散射系数可以有效区分玻璃亚表面不同深度的损伤结构。玻璃亚表面散射系数的深度分辨率测量有利于对玻璃亚表面缺陷光学特性的分析,对于精密光学元件的加工和检测具有重要意义。
A micron spectral domain optical coherence tomography(SDOCT)system built by us is used to conduct depth resolution,noncontact,and nondestructive measurement of glass subsurface defects.In addition,a single scattering model is used to calculate the obtained tomographic images,and obtain the glass scattering coefficient of glass subsurface defects.The experimental results revealed that the use of scattering coefficient is effective in distinguishing damage structures at different depths on the glass subsurface.The depth resolution measurement of the glass subsurface scattering coefficient is beneficial to the analysis of the optical characteristics of glass subsurface defects,and is essential for the processing and testing of precision optical components.
作者
王昌明
高万荣
Wang Changming;Gao Wanrong(School of Electronic and Optical,Engineering Nanjing University of Science and Technology,Nanjing,Jiangsu 210094,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2021年第7期174-179,共6页
Acta Optica Sinica
基金
中央高校基本科研业务费专项(30920010003)。
关键词
成像系统
散射系数
玻璃亚表面缺陷
单次散射模型
损伤结构
imaging systems
scattering coefficient
glass subsurface defects
single scattering model
damage structure
