Focal shift in optical waves with off-axis focus

被引：3
|
作者：
Zapata-Rodríguez, CJ [1 ]
Saavedra, G [1 ]
Martínez-Corral, M [1 ]
机构：
[1] Univ Valencia, Dept Opt, E-46100 Burjassot, Spain
来源：
OPTICS COMMUNICATIONS | 2003年 / 216卷 / 1-3期
关键词：
diffraction; wave propagation;
D O I：
10.1016/S0030-4018(02)02280-0
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a formulation for a suitable description of the focal shift in optical waves that have an off-axis focus. This shift that is primarily produced along the chief axis is given in terms of the focal distance and depends only on a parameter that is named as the generalized Fresnel number. Any non-uniform, either truncated and non-apertured optical beam with off-axis focus may be considered. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：11 / 17
页数：7
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