Quantum multiscale modeling of electron dynamics and material properties during femtosecond laser-material interactions

Zheng Xie, Cong Wang*, Zhi Luo, Ji'An Duan, Lan Jiang

*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

The controlled, well-characterized evolution of the amplitude envelope and carrier-frequency sweep of ultrafast laser pulses permits measurement and control of quantum transitions on a femtosecond time scale. This opens new perspectives for controlling the transient localized electron dynamics, corresponding material properties and phase change mechanisms, which are critical in laser micro/nano fabrication. In this study, the first-principles calculations and plasma model are used to theoretically investigate the changes of localized transient electron dynamics and the corresponding material properties during femtosecond laser pulse trains ablation of fused silica. Theoretical results show that the electron dynamics including photon absorption, electron excitation and free electron distributions can be changed; the corresponding material properties such as thermal and optical properties can then be controlled; and hence, high quality structures can be obtained.

Original languageEnglish
Title of host publication16th International Conference on Electronic Packaging Technology, ICEPT 2015
EditorsHu He, Keyun Bi, Wenhui Zhu
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-7
Number of pages7
ISBN (Electronic)9781467379991
DOIs
Publication statusPublished - 1 Sept 2015
Event16th International Conference on Electronic Packaging Technology, ICEPT 2015 - Changsha, China
Duration: 11 Aug 201514 Aug 2015

Publication series

Name16th International Conference on Electronic Packaging Technology, ICEPT 2015

Conference

Conference16th International Conference on Electronic Packaging Technology, ICEPT 2015
Country/TerritoryChina
CityChangsha
Period11/08/1514/08/15

Keywords

  • electron dynamics
  • laser micro/nano fabrication
  • laser-material interactions
  • quantum multiscale modelling

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