Incandescence Measurement During CO_2 Laser Texturing of Silicate Glass

摘要

Laser zone texture is a new approach to improve tribology performance of high aerial density disks made with glass substrates. In this process, nanotexture is introduced to the surface by discrete laser pulses. The topography change is due to the elevation of fictive temperature in the short time and high temperature scales that occur through the laser energy coupling with glass. To exercise better control over this thermal process, knowing the temperature field induced by the laser pulse and the timescale of the thermal cycle are very important.