Author Affiliations
Abstract
1 Ultrafast Laser Laboratory, School of Precision Instruments and Optoeletronics Engineering
2 Key Laboratory of Optoelectronic Information Technical Science, Ministry of Education, Tianjin University, Tianjin 3000722Electronic Engineering Department, Tianjin University of Technology and Education, Tianjin 300222
Lines are induced on the surface of a photosensitive (FOTURAN) glass by focused femtosecond laser transverse writing with scanning velocity in a wide range of 40-1800 μm/s. The formed lines are analyzed using scanning electron microscope (SEM) and optical microscope (OM). It is observed that three distinct morphologies of lines are produced depending on the scanning velocity. Lines written in low velocity level (40-100 μm/s) and high velocity level (1000-1800 μm/s) are uniform and regular, while those written in moderate velocity level (150-600 μm/s) are rough. The influence of scanning velocity is explained based on different pulses overlapping or cumulative dose of laser exposure in irradiated area. Fabrication of shallow groove on the surface is also demonstrated.
诱导线 飞秒激光 扫描速度 FOTURAN 光敏玻璃 140.3390 Laser materials processing 140.7090 Ultrafast lasers 230.4000 Microstructure fabrication 130.3120 Integrated optics devices Chinese Optics Letters
2008, 6(1): 0151