Multiscale modeling of ultrafast laser-material interactions

Hai Lung Tsai*, Lan Jiang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

This paper reports the overall picture of our ongoing efforts to establish the scientific understanding of ultrafast, non-equilibrium laser-material interactions from nanometer to millimeter and from femtosecond to microsecond through comprehensive, integrated multiscale physicochemical modeling and experimental verification. A novel plasma model with quantum treatments is developed to account for significantly varying optical properties. The model is used to successfully predict two uncommon phenomena that are experimentally observed: 1) a flat-bottom crater shape created by a Gaussian beam and 2) repeatable nanoscale structures achieved by pulse train technology. The well known two-temperature model is improved by considering the quantum effects of different heat carriers and then is used to accurately predict the damage thresholds for metals. Preliminary results for these ongoing modeling efforts are reported in this article.

Original languageEnglish
Title of host publication3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008 - Conference Proceedings
PublisherLaser Institute of America
Pages755-760
Number of pages6
ISBN (Print)9780912035895
DOIs
Publication statusPublished - 2008
Event3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008 - Beijing, China
Duration: 16 Apr 200818 Apr 2008

Publication series

Name3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008 - Conference Proceedings

Conference

Conference3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008
Country/TerritoryChina
CityBeijing
Period16/04/0818/04/08

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