Using the plasma model recent developed by the authors, this study predicts the existence of a constant ablation-depth zone with respect to fluence in femtosecond laser ablation of dielectrics, which has also been observed experimentally. It is found that the value of the constant ablation depth is significantly decreased by the pulse train technology. Repeatable nanostructures can be achieved with the parameters in the constant ablation-depth zone of a femtosecond pulse train, even when the laser system is subject to fluctuations in fluences.
L. Jiang and H. Tsai, "Repeatable Nanostructures in Dielectrics by Femtosecond Laser Pulse Trains," Applied Physics Letters, American Institute of Physics (AIP), Oct 2005.
The definitive version is available at http://dx.doi.org/10.1063/1.2093935
Mechanical and Aerospace Engineering
National Science Foundation (U.S.)
Keywords and Phrases
Laser Ablation; High-Speed Optical Techniques
Article - Journal
© 2005 American Institute of Physics (AIP), All rights reserved.