Abstract
This study proposes a rear-surface ablation enhancement approach to fabricate high-aspect-ratio microchannels by temporally shaping femtosecond laser pulse trains. in the case study of K9 glass, enhancements of up to a 56 times higher material removal rate and a three times greater maximum drilling depth are obtained by the proposed method, as compared with conventional femtosecond laser drilling at the same processing parameters. the improvements are due to the changes of photon-electron interactions by shaping femtosecond pulse train, which can effectively adjust the photon absorption and localized transient material properties by changing electron dynamics such as free electron densities. © 2012 Optical Society of America.
Recommended Citation
L. Jiang et al., "High-throughput Rear-surface Drilling of Microchannels in Glass based on Electron Dynamics Control using Femtosecond Pulse Trains," Optics Letters, vol. 37, no. 14, pp. 2781 - 2783, Optica Publishing Group, Jul 2012.
The definitive version is available at https://doi.org/10.1364/OL.37.002781
Department(s)
Mechanical and Aerospace Engineering
Second Department
Electrical and Computer Engineering
Publication Status
Open Access
International Standard Serial Number (ISSN)
1539-4794; 0146-9592
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Optica Publishing Group, All rights reserved.
Publication Date
15 Jul 2012
Included in
Aerospace Engineering Commons, Electrical and Computer Engineering Commons, Mechanical Engineering Commons
