Deformation of ultra-short laser pulses by optical systems for laser scanners.
Deformation of ultra-short laser pulses by optical systems for laser scanners.
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激光扫描仪的光学系统使超短激光脉冲变形。
DOI：
10.1364/oe.21.024475
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发表时间：
2013
期刊：
影响因子：
3.8
通讯作者：
P. Loosen
中科院分区：
文献类型：
--
作者：
L. Büsing;T. Bonhoff;J. Gottmann;P. Loosen
目前使用超短激光脉冲（< 1ps）加工玻璃的实验导致扫描角度取决于加工结果。通过对激光扫描仪常用聚焦透镜的模拟，验证了这种扫描角依赖效应。由于色散，聚焦透镜可能会引起脉冲变形，并增加焦点区域的脉冲持续时间。如果入射激光束的场角是可变的，脉冲变形也会随场角的变化而变化。通过光线跟踪和波光学模拟，研究了不同扫描角度下光学系统的脉冲变形。
Current experiments of processing glass with ultra-short laser pulses (< 1 ps) lead to scan angle depending processing results. This scan angle depending effect is examined by simulations of a common focusing lens for laser scanners. Due to dispersion, focusing lenses may cause pulse deformations and increase the pulse duration in the focal region. If the field angle of the incoming laser beam is variable, the pulse deformation may also vary as a function of the field angle. By ray tracing as well as wave optical simulations we investigate pulse deformations of optical systems for different scan angles.