Journal
OPTIK
Volume 172, Issue -, Pages 137-143Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.ijleo.2018.06.109
Keywords
Femtosecond laser; Hot-electron-blast; Wave propagation; Shock pressure
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Funding
- National Nature Science Foundation of China [11504144, 51479082]
- National Program on Key Basic Research Project (973 Program) of China [2011CB013004]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [11KJA460003]
- Science and Technology Program - Jiangsu Province [BE2015037]
- Jiangsu Provincial Six Talent Peaks [2013-ZBZZ-025]
- Talent Starting Foundation of Jiangsu University [15JDG133]
- Young Leading Teachers Project of Jiangsu University
- 'Shuangchuang Project' of Jiangsu Province
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This paper presents a transient analysis of the wave propagation in an aluminum film caused by a femtosecond laser pulse irradiation on the surface. The hot-electron-blast is induced during interaction between a femtosecond laser pulse and the aluminum film. By employing three-dimensional solid mechanics and TTM-TEF (two-temperature and thermal-elastic-force) model, the dynamic wave propagation and dynamic shock pressure P are studied and compared with constant results obtained by previous methods. The low-reflecting boundary conditions have been used to truncate the computational domain to a reasonable size. The dynamic shock pressure P and wave propagation show dynamic change process inside of aluminum films.
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