Wave packets in smoothly inhomogeneous dispersive media

被引：17

作者：

Permitin, GV ^{[1
]}

Smirnov, AI ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2001年 / 92卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

Differential Equation; Field Theory; Elementary Particle; Quantum Field Theory; Ordinary Differential Equation;

D O I：

10.1134/1.1348457

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the quasi-optical aberration-free approximation, a parabolic equation for the envelope of an electromagnetic wave packet propagating along a geometric optical ray in a smoothly inhomogeneous isotropic medium with time dispersion is obtained. The corresponding Green's function is found whose parameters are determined by integrating a system of ordinary differential equations. The effects of the combined influence of the refraction, diffraction, and dispersion an the evolution of the packet are: analyzed; in particular, the effects that cause precession of the envelope waves about the binormal to the propagation trajectory are considered. (C) 2001 MAIK "Nauka/Interperiodica".

引用

页码：10 / 19

页数：10