Time-domain theory of forerunners

被引:28
|
作者
Karlsson, A [1 ]
Rikte, S [1 ]
机构
[1] Lund Inst Technol, Dept Electromagnet Theory, S-22100 Lund, Sweden
关键词
D O I
10.1364/JOSAA.15.000487
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The time-domain theory of forerunners (precursors) in temporally dispersive, nonmagnetic, isotropic materials is developed with the propagator technique. Specifically, the impulse response at a (comparatively) large propagation depth is expanded in two different ways: (a) with respect to the wave front and (b) with respect to slowly varying field components. A few numerical examples illustrating the theory are given. (C) 1998 Optical Society of America.
引用
收藏
页码:487 / 502
页数:16
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