Industry Internship: Measurement and Control of Subsurface Damage in the Grinding of Large Glass Optics

本研究的目标是开发一种确定性加工工艺，能够生产表面损伤层在2-5个特征压痕尺寸范围内的非球面玻璃部件。使用传统的抛光技术，这些部件可以在比目前可能的更短的时间内完成，大大提高了大型非球面玻璃光学器件的生产效率。研究计划的另一个重要任务是研究玻璃磨削过程中产生的表面，目的是表征精密磨削过程中产生的表面损伤和亚表面损伤。这包括使用触笔轮廓术、光学显微镜和扫描电子显微镜对玻璃表面（或表面复制品）进行研磨后检查。

The objectives of this research is to develop a deterministic machining process capable of producing aspherical glass components with a surface damage layer in the 2-5 characteristic indentation dimensions range. Such components could then be finished, using traditional polish techniques, in substantial shorter time than is currently possible, greatly enhancing the producibility of larger aspherical glass optics. Another important task of the research plan is to study the surfaces produced in glass grinding, with the aim of characterizing the surface damage and subsurface damage resulting from the precision grinding process. This involves post-grinding examination of the glass surface (or replicas of the surface) using stylus profilometry, optical microscopy, and scanning electron microscope.