A combined model and its verification for femtosecond-pulse materials interactions

Lan Jiang*, Hai Lung Tsai

*Corresponding author for this work

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

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 milimeter and from femtosecond to microsecond through comprehensive, integrated multiscale physico-chemical 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 is 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 publication2008 Proceedings of the ASME - 2nd International Conference on Integration and Commercialization of Micro and Nanosystems, MicroNano 2008
Pages609-614
Number of pages6
DOIs
Publication statusPublished - 2008
Event2008 ASME 2nd International Conference on Integration and Commercialization of Micro and Nanosystems, MicroNano 2008 - Kowloon, Hong Kong
Duration: 3 Jun 20085 Jun 2008

Publication series

Name2008 Proceedings of the ASME - 2nd International Conference on Integration and Commercialization of Micro and Nanosystems, MicroNano 2008

Conference

Conference2008 ASME 2nd International Conference on Integration and Commercialization of Micro and Nanosystems, MicroNano 2008
Country/TerritoryHong Kong
CityKowloon
Period3/06/085/06/08

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