Ultrafast dynamics of thermionic emission on Au film under femtosecond laser excitation |
| |
Authors: | Guangqing Du Qing Yang Feng Chen Xiangwei Meng Hao Bian Jinhai Si Xun Hou |
| |
Affiliation: | 1. State Key Laboratory for Manufacturing Systems Engineering & Key Laboratory of Photonics Technology for Information, School of Electronics & Information Engineering, Xi’an Jiaotong University, Xianing-xilu 28, Xi’an, 710049, China
|
| |
Abstract: | A high-fidelity numerical model for investigations of the ultrafast heating is highly desirable for simulating the pulsed laser damage and the ultrafast electron emission characteristics. However, realization of accurate predictions of thermal dynamics and thermionic electron emission remains challenging due to the high non-equilibrium state, in which the equilibrium heating parameters are invalid. Here, we report an axisymmetric two-dimensional (2-D) high-fidelity numerical model for predictions of the thermionic emission with respect to the temperature-dependent dynamics parameters. The spatio-temporal temperature evolution dynamics and the thermionic emission rate characteristics on Au film target are demonstrated, whose credibility is approved by the Au film ablation threshold experiments. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|