First-principles electron dynamics control simulation of diamond under femtosecond laser pulse train irradiation

被引：31

作者：

Wang, Cong ^{[1
]}

Jiang, Lan ^{[1
]}

Wang, Feng ^{[1
]}

Li, Xin ^{[1
]}

Yuan, Yanping ^{[1
]}

Xiao, Hai ^{[2
]}

Tsai, Hai-Lung ^{[3
]}

Lu, Yongfeng ^{[4
]}

机构：

[1] Beijing Inst Technol, Laser Micro Nano Fabricat Lab, Sch Mech Engn, Beijing 100081, Peoples R China

[2] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA

[3] Missouri Univ Sci & Technol, Dept Mech & Aerosp Engn, Rolla, MO 65409 USA

[4] Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2012年 / 24卷 / 27期

基金：

中国国家自然科学基金;

关键词：

ABLATION; DIELECTRICS; IONIZATION;

D O I：

10.1088/0953-8984/24/27/275801

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A real-time and real-space time-dependent density functional is applied to simulate the nonlinear electron-photon interactions during shaped femtosecond laser pulse train ablation of diamond. Effects of the key pulse train parameters such as the pulse separation, spatial/temporal pulse energy distribution and pulse number per train on the electron excitation and energy absorption are discussed. The calculations show that photon-electron interactions and transient localized electron dynamics can be controlled including photon absorption, electron excitation, electron density, and free electron distribution by the ultrafast laser pulse train.

引用

页数：7

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