Phase change in a diffracted wave: a Cornu spiral perspective

被引：1
|
作者：
Avila, Remy [1 ]
Castano, Victor M. [2 ]
机构：
[1] Univ Nacl Autonoma Mexico, Ctr Fis Aplicada & Tecnol Avanzada, Santiago De Queretaro 76000, Mexico
[2] Univ Autonoma Queretaro, Queretaro 76010, Mexico
来源：
OPTICS LETTERS | 2010年 / 35卷 / 18期
关键词：
FRACTIONAL-FOURIER-TRANSFORM; FRESNEL DIFFRACTION; PATTERNS;
D O I：
10.1364/OL.35.003087
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple evaluation of the phase change in a diffracted wave, in terms of the Cornu spiral, is presented to complement the well-known intensity change, which is routinely obtained for this elegant graphical construction of the Fresnel integrals. This is, to the best of our knowledge, the first presentation of this evaluation. It is shown that the phase of a wave diffracted by a slit is equal to the slope of the line tangent to the Cornu spiral, shifted by pi/4. (C) 2010 Optical Society of America
引用
收藏
页码：3087 / 3089
页数：3
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