Fractal Cylindrical Fracxicon

被引：0
作者：
Khonina S.N. [1 ]
Volotovskiy S.G. [1 ]
机构：
[1] IPSI RAS, Branch of the FSRC “Crystallography and Photonics” RAS, Samara
来源：
Optical Memory and Neural Networks | 2018年 / 27卷 / 1期
基金：
俄罗斯基础研究基金会;
关键词：
chirping; fractals; fractional axicon; fractional Fourier transform; fracxicon; generalized lens; self-focusing;
D O I：
10.3103/S1060992X18010034
中图分类号：
学科分类号：
摘要：
The paper presents the results of a numerical study of a new optical element–the fractal fracxicon. The fracxicon is an element whose phase function is a fractional power of spatial coordinates. With the power of phase function being less than two (sub-linearly chirped), a fracxicon corresponds to a fractional axicon and provides self-focusing features similar to mirror/specular Airy beams. When the power is greater than two (super-linearly chirped), a fracxicon corresponds to a generalized lens and provides self-focusing, which is faster and sharper than a lens provides. A fractal fracxicon generates beams that exhibit such properties as self-similarity and self-focusing. This type of optical elements can be used as versatile tools in the field of optical micromanipulation and data encoding. © 2018, Allerton Press, Inc.
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页码：1 / 9
页数：8
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