scholarly journals Numerical simulation of femtosecond laser heating of metal films using electron thermal emission

2010 ◽  
Vol 59 (10) ◽  
pp. 7198
Author(s):  
Chen An-Min ◽  
Gao Xun ◽  
Jiang Yuan-Fei ◽  
Ding Da-Jun ◽  
Liu Hang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Femtosecond Laser ◽  
Laser Heating ◽  
Thermal Emission ◽  
Metal Films

Numerical Simulation of Thermal Electron Emission in Metal Films Ablated by Multi-Pulse Femtosecond Laser

2012 ◽  
Vol 49 (8) ◽  
pp. 083201
Author(s):  
徐斌 Xu Bin ◽  
伍晓宇 Wu Xiaoyu ◽  
凌世全 Ling Shiquan ◽  
罗烽 Luo Feng ◽  
杜晨林 Du Chenlin ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Femtosecond Laser ◽  
Electron Emission ◽  
Metal Films ◽  
Thermal Electron

Thermal analysis of double-layer metal films during femtosecond laser heating

2011 ◽  
Vol 13 (5) ◽  
pp. 055503 ◽  
Author(s):  
A M Chen ◽  
Y F Jiang ◽  
L Z Sui ◽  
H Liu ◽  
M X Jin ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Femtosecond Laser ◽  
Double Layer ◽  
Laser Heating ◽  
Metal Films

Theoretical Study on Femtosecond Laser Heating of Two-Layer Metal Films

2017 ◽  
Vol 54 (5) ◽  
pp. 051402
Author(s):  
陈安民 Chen Anmin ◽  
何喜明 He Ximing ◽  
费德厚 Fei Dehou ◽  
金明星 Jin Mingxing
Keyword(s):  
Femtosecond Laser ◽  
Laser Heating ◽  
Theoretical Study ◽  
Metal Films

Thermal analysis of thin multi-layer metal films during femtosecond laser heating

2010 ◽  
Vol 46 (11-12) ◽  
pp. 1287-1293 ◽  
Author(s):  
A. Karakas ◽  
M. Tunc ◽  
Ü. Camdali
Keyword(s):  
Thermal Analysis ◽  
Femtosecond Laser ◽  
Laser Heating ◽  
Metal Films

Performance Comparison of Numerical Procedures for Efficiently Solving a Microscale Heat Transport Equation During Femtosecond Laser Heating of Nanoscale Metal Films

2005 ◽  
Author(s):  
Ravi Ranjan Kumar ◽  
J. M. McDonough ◽  
M. P. Mengu¨c¸ ◽  
Illayathambi Kunadian
Keyword(s):  
Femtosecond Laser ◽  
Transport Equation ◽  
Heat Transport ◽  
Laser Heating ◽  
Numerical Technique ◽  
Computational Cost ◽  
Metal Films ◽  
Performance Comparison ◽  
Heat Transport Equation ◽  
Time Splitting

An alternative discretization and solution procedure for implicitly solving a 3-D microscale heat transport equation during femtosecond laser heating of nanoscale metal films has been developed (Kunadian et al. [1]). The proposed numerical technique directly solves a single partial differential equation, unlike other techniques available in the literature which splits the equation into a system of two equations and then apply discretization. The present paper investigates performance of its split and unsplit methods of solution via numerical experiments using Gauss–Seidel, conjugate gradient, generalized minimal residual and δ-form Douglas–Gunn time-splitting methods to compare the computational cost involved in these methods. The comparison suggests that the unsplit method [1] employing δ-form Douglas–Gunn spatial time-splitting is the most efficient way in terms of CPU time taken to complete the simulation of solving the 3-D time dependent microscale heat transport equation.

An Efficient Numerical Procedure for Solving Microscale Heat Transport Equation During Femtosecond Laser Heating of Nanoscale Metal Films

2005 ◽  
Author(s):  
Illayathambi Kunadian ◽  
J. M. McDonough ◽  
Ravi Ranjan Kumar
Keyword(s):  
Femtosecond Laser ◽  
Transport Equation ◽  
Heat Transport ◽  
Laser Heating ◽  
Numerical Technique ◽  
Metal Films ◽  
Transient Temperature ◽  
Numerical Predictions ◽  
Heat Transport Equation ◽  
Time Splitting

An alternative discretization and solution procedure is developed for implicitly solving a microscale heat transport equation during femtosecond laser heating of nanoscale metal films. The proposed numerical technique directly solves a single partial differential equation, unlike other techniques available in the literature which split the equation into a system of two equations and then apply discretization. It is shown by von Neumann stability analysis that the proposed numerical method is unconditionally stable. The numerical technique is then extended to three space dimensions, and an overall procedure for computing the transient temperature distribution during short-pulse laser heating of thin metal films is presented. Douglas-Gunn time-splitting and delta-form Douglas-Gunn time-splitting methods are employed to solve the discretized 3-D equations; a simple argument for stability is given for the split equation. The performance of the proposed numerical scheme will be compared with the numerical techniques available in the literature and it is shown that the new formulation is comparably accurate and significantly more efficient. Finally, it is shown that numerical predictions agree with available experimental data during sub-picosecond laser heating.

Modeling of femtosecond laser damage threshold on the two-layer metal films

2010 ◽  
Vol 257 (5) ◽  
pp. 1678-1683 ◽  
Author(s):  
A.M. Chen ◽  
H.F. Xu ◽  
Y.F. Jiang ◽  
L.Z. Sui ◽  
D.J. Ding ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Damage Threshold ◽  
Metal Films ◽  
Laser Damage Threshold ◽  
Laser Damage
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