Title :
Quantum multiscale modeling of phase changes during femtosecond laser ablation of silica
Author :
Wang, Cong ; Jiang, Lan ; Li, Xin ; Tsai, Hai-Lung ; Lu, Yongfeng
Author_Institution :
Sch. of Mech. Eng., Beijing Inst. of Technol., Beijing, China
Abstract :
Considering the time/length scales where collisions govern the evolution of the phenomena, a quantum multiscale model is proposed to reveal the fundamental science underlying ultrafast, non-equilibrium laser-material interactions, which consists of the first-principles calculation, revised molecular dynamics simulation, plasma model, and improved two-temperature model, for free electron generation, electron-lattice interaction, and phase change mechanisms.
Keywords :
ab initio calculations; high-speed optical techniques; laser ablation; molecular dynamics method; phase transformations; silicon compounds; SiO2; electron-lattice interaction; femtosecond laser ablation; first-principles calculation; free electron generation; laser-material interactions; phase changes; plasma model; quantum multiscale modeling; revised molecular dynamics simulation; silica; two-temperature model;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
