An improved ADI-FDTD method and its application to photonic simulations

被引：54
|
作者：
Rao, HL [1 ]
Scarmozzino, R
Osgood, RM
机构：
[1] Columbia Univ, Microelect Sci Labs, New York, NY 10027 USA
[2] RSoft Inc, Ossining, NY 10562 USA
[3] Brookhaven Natl Lab, Upton, NY 11973 USA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2002年 / 14卷 / 04期
关键词：
ADI technique; courant stability; FDTD method; numerical dispersion; PML-BC;
D O I：
10.1109/68.992583
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
When ADI-FDTD is applied to simulating photonic devices, full efficiency can not be achieved if reasonable accuracy is to be kept, due to numerical errors such as numerical dispersion. A simple modification to ADI-FDTD is proposed by calculating the envelope rather than the fast-varying field, so that errors are minimized. A factor of two-five in speed can usually be gained while retaining the same level of accuracy compared with the conventional FDTD.
引用
收藏
页码：477 / 479
页数：3
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