作者
WILLAMYS C SOARES, ANDRÉ L MOURA, ASKERY A CANABARRO, EMERSON DE LIMA, JANDIR M HICKMANN
发表日期
2015/11
期刊
OPTICS LETTERS
卷号
40
期号
22
页码范围
5129-5131
出版商
OSA
简介
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.
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