Improved nonparaxial accelerating beams due to additional off-axis spiral phases

被引：3
作者：
Zhu, Wenguo [1 ]
She, Weilong [1 ]
机构：
[1] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2014年 / 31卷 / 11期
基金：
中国国家自然科学基金;
关键词：
AIRY BEAMS; FINITE-ENERGY; PROPAGATION; LIGHT; VORTICES; DYNAMICS; WAVES;
D O I：
10.1364/JOSAA.31.002365
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An accelerating beam with a Gaussian transverse profile can preserve its shape while propagating along a quarter of a circle. When an off-axis spiral phase is imposed, however, the beam will have an additional acceleration perpendicular to the circle. A two-dimensional accelerating beam is constructed and is found to accelerate along both the x and the y directions, but its transverse intensity profile cannot be maintained well due to the interaction of accelerations along different directions. The intensity profile can be improved by imposing two off-axis spiral phases onto the input beam. (C) 2014 Optical Society of America
引用
收藏
页码：2365 / 2369
页数：5
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