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Ki, Hyungson
Laser Processing & Multiphysics Systems Laboratory
Research Interests
  • Laser materials processing
  • Laser material interaction

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Numerical simulation of femtosecond laser interaction with silicon

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Title
Numerical simulation of femtosecond laser interaction with silicon
Author
Ki, HyungsonMazumder, J.
Keywords
Ablation;  Emtosecond laser;  FDTD;  Finite-difference time-domain;  Silicon;  Two-temperature model
Issue Date
2005-05
Publisher
AMER INST PHYSICS
Citation
JOURNAL OF LASER APPLICATIONS, v.17, no.2, pp.110 - 117
Abstract
A numerical model for simulating femtosecond laser interaction with silicon is presented. This model simulates laser beam propagation by directly solving Maxwell's equations using the finite-difference time-domain method, so that complete electromagnetic nature of a laser beam is simulated accurately. Accurate computation of laser beam passage ensures realistic heat generation pattern in the target material. The two-temperature model has been adopted to simulate the energy transport of electrons and lattices. This study reveals interesting results regarding thermal energy generation and complex laser beam passage in the silicon target. The temperature histories of electrons and lattices are presented. (c) 2005 Laser Institute of America.
URI
https://scholarworks.unist.ac.kr/handle/201301/6541
DOI
10.2351/1.1848529
ISSN
1042-346X
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