Radiative phonon transport in silicon and collisional energy transfer in aluminum films due to laser short-pulse heating: Influence of laser pulse intensity on temperature distribution

2012 ◽  
Vol 44 (1) ◽  
pp. 43-50 ◽  
Author(s):  
S. Bin Mansoor ◽  
B.S. Yilbas
Keyword(s):  
Energy Transfer ◽  
Temperature Distribution ◽  
Laser Pulse ◽  
Pulse Heating ◽  
Short Pulse ◽  
Phonon Transport ◽  
Aluminum Films ◽  
Collisional Energy ◽  
Laser Pulse Intensity ◽  
Collisional Energy Transfer

Non-equilibrium energy transport and entropy production due to laser short-pulse irradiation

2016 ◽  
Vol 94 (1) ◽  
pp. 130-138 ◽  
Author(s):  
H. Ali ◽  
B.S. Yilbas ◽  
A.Y. Al-Dweik
Keyword(s):  
Laser Pulse ◽  
Entropy Generation ◽  
Energy Transport ◽  
Pulse Heating ◽  
Short Pulse ◽  
Generation Rate ◽  
Entropy Generation Rate ◽  
Pulse Intensity ◽  
Laser Pulse Intensity ◽  
Nano Size

Laser short-pulse heating of a nano-size wire is considered and entropy generation rate is predicted during the heating pulse. The analytical solution of the heat equation is obtained using the Lie point symmetry for the laser short-pulse heating. The nano-size wire is assumed to be symmetric along its y-axis. Laser pulse intensity is considered to be Gaussian at the irradiated surface while the exponential decay of the laser pulse is incorporated in the time domain. It is found that surface temperature variation in the lattice subsystem almost follows the laser pulse intensity distribution at the surface. Entropy generation rate attains low values along the symmetry axis and it increases considerably in the region of the nano-size wire edges. This behavior is associated with the temperature gradient, which attains high values in the region close to the nano-size wire edge.

Supercollision events in weak collisional energy transfer of highly excited species

1991 ◽  
Vol 182 (3-4) ◽  
pp. 357-362 ◽  
Author(s):  
David L. Clarke ◽  
Keiran C. Thompson ◽  
Robert G. Gilbert
Keyword(s):  
Energy Transfer ◽  
Collisional Energy ◽  
Excited Species ◽  
Collisional Energy Transfer

Laser-induced collisional energy transfer in Sr—Li system

2012 ◽  
Vol 21 (8) ◽  
pp. 083202 ◽  
Author(s):  
De-Ying Chen ◽  
Zhen-Zhong Lu ◽  
Rong-Wei Fan ◽  
Yuan-Qin Xia ◽  
Zhi-Gang Zhou ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Collisional Energy ◽  
Collisional Energy Transfer
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