Singular optical lattice generation using light beams with orbital angular momentum

被引：9
|
作者：
Soares, Willamys C. [1 ]
Moura, Andre L. [1 ,2 ]
Canabarro, Askery A. [1 ,3 ,4 ]
De Lima, Emerson [1 ]
Hickmann, Jandir M. [5 ]
机构：
[1] Univ Fed Alagoas, Nucleo Ciencias Exatas NCEX, Grp Fis Mat Condensada, BR-57309005 Arapiraca, AL, Brazil
[2] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil
[3] Boston Univ, Ctr Polymer Studies, Boston, MA 02215 USA
[4] Boston Univ, Dept Phys, Boston, MA 02215 USA
[5] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil
来源：
OPTICS LETTERS | 2015年 / 40卷 / 22期
关键词：
LAGUERRE-GAUSSIAN MODES; VORTICES; INTERFERENCE;
D O I：
10.1364/OL.40.005129
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this Letter we numerically and experimentally demonstrated that a lattice with an optical vortex distributed over the entire lattice can be generated in the Fourier space using three higher-order Laguerre-Gauss beams placed at the vertices of an equilateral triangle in real space. In this scheme the optical vortice's lattice presents a topological defect in its central region. Probing the net topological charge of the whole lattice, we found that it corresponds to the topological charge associated with the orbital angular momentum of each beam in real space. (C) 2015 Optical Society of America
引用
收藏
页码：5129 / 5131
页数：3
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