FDTD method for laser absorption in metals for large scale problems

被引：3

作者：

Deng, Chun ^{[1
]}

Ki, Hyungson ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Sch Mech & Adv Mat Engn, Ulsan, South Korea

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 21期

基金：

新加坡国家研究基金会;

关键词：

SILICON;

D O I：

10.1364/OE.21.025467

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The FDTD method has been successfully used for many electromagnetic problems, but its application to laser material processing has been limited because even a several-millimeter domain requires a prohibitively large number of grids. In this article, we present a novel FDTD method for simulating large-scale laser beam absorption problems, especially for metals, by enlarging laser wavelength while maintaining the material's reflection characteristics. For validation purposes, the proposed method has been tested with in-house FDTD codes to simulate p-, s-, and circularly polarized 1.06 mu m irradiation on Fe and Sn targets, and the simulation results are in good agreement with theoretical predictions. (C) 2013 Optical Society of America

引用

页码：25467 / 25479

页数：13

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