TY - JOUR
T1 - Modeling of ultrashort laser pulse-train processing of metal thin films
AU - Jiang, Lan
AU - Tsai, Hai Lung
PY - 2007/8
Y1 - 2007/8
N2 - The improved two-temperature model with quantum treatments is used to analyze the ultrashort laser pulse-train processing of gold thin films. This study demonstrates that (1) as compared to "normal" laser heating, pulse-train technology can increase the photon efficiency, i.e., less total laser energy is required to achieve the same lattice temperature or phase change; (2) the number of bursts required for melting decreases with the repetition rate, but at tens of MHz or higher, the repetition rate has a negligible effect; (3) the lattice temperature at the thermolization time first increases to a peak and then decreases as the pulse separation time increases.
AB - The improved two-temperature model with quantum treatments is used to analyze the ultrashort laser pulse-train processing of gold thin films. This study demonstrates that (1) as compared to "normal" laser heating, pulse-train technology can increase the photon efficiency, i.e., less total laser energy is required to achieve the same lattice temperature or phase change; (2) the number of bursts required for melting decreases with the repetition rate, but at tens of MHz or higher, the repetition rate has a negligible effect; (3) the lattice temperature at the thermolization time first increases to a peak and then decreases as the pulse separation time increases.
KW - Pulse-train
KW - Thin film processing
KW - Ultrashort laser pulses
UR - https://www.scopus.com/pages/publications/34247472137
U2 - 10.1016/j.ijheatmasstransfer.2007.01.049
DO - 10.1016/j.ijheatmasstransfer.2007.01.049
M3 - Article
AN - SCOPUS:34247472137
SN - 0017-9310
VL - 50
SP - 3461
EP - 3470
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
IS - 17-18
ER -