Far-field propagation of an off-axis Gaussian wave

被引：30
|
作者：
Zeng, XD [1 ]
Liang, CH [1 ]
An, YY [1 ]
机构：
[1] Xidian Univ, Dept Tech Phys, Xian 710071, Peoples R China
来源：
APPLIED OPTICS | 1999年 / 38卷 / 30期
关键词：
D O I：
10.1364/AO.38.006253
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on a far-field asymptotic solution of the Helmholtz equation a vector theory to describe the propagation of an off-axis Gaussian wave is developed, the accurate formulas represented in terms of elementary functions are derived, and the propagation properties such as wave spot size and divergence angle are discussed in detail. The applicable range of scalar theory is also presented. A relative error criterion of optical intensity is given by epsilon = sin(2) alpha. (C) 1999 Optical Society of America.
引用
收藏
页码：6253 / 6256
页数：4
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