TRANSPARENT BOUNDARY-CONDITION FOR BEAM PROPAGATION

被引:267
作者
HADLEY, GR
机构
[1] Sandia National Laboratories, Albuquerque, NM
关键词
D O I
10.1364/OL.16.000624
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A new boundary condition algorithm is presented that passes outgoing radiation freely with a minimum reflection coefficient (typically 10(-5)) while inhibiting the flux of incoming radiation. In contrast to the commonly used absorber method, this algorithm contains no adjustable parameters and is thus problem independent. It adapts naturally to a standard Crank-Nicholson difference scheme and is shown to be accurate and robust for both two- and three-dimensional problems.
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页码:624 / 626
页数:3
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