TY - GEN
T1 - Quantum multiscale modeling of electron dynamics and material properties during femtosecond laser-material interactions
AU - Xie, Zheng
AU - Wang, Cong
AU - Luo, Zhi
AU - Duan, Ji'An
AU - Jiang, Lan
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - 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.
AB - 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.
KW - electron dynamics
KW - laser micro/nano fabrication
KW - laser-material interactions
KW - quantum multiscale modelling
UR - http://www.scopus.com/pages/publications/84957809469
U2 - 10.1109/ICEPT.2015.7236531
DO - 10.1109/ICEPT.2015.7236531
M3 - Conference contribution
AN - SCOPUS:84957809469
T3 - 16th International Conference on Electronic Packaging Technology, ICEPT 2015
SP - 1
EP - 7
BT - 16th International Conference on Electronic Packaging Technology, ICEPT 2015
A2 - He, Hu
A2 - Bi, Keyun
A2 - Zhu, Wenhui
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th International Conference on Electronic Packaging Technology, ICEPT 2015
Y2 - 11 August 2015 through 14 August 2015
ER -