Far-field pattern formation by manipulating the topological charges of square-shaped optical vortex lattices

L. Stoyanov; G. Maleshkov; M. Zhekova; I. Stefanov; D. N. Neshev; G. G. Paulus; And A. Dreischuh

doi:10.1364/JOSAB.35.000402

Far-field pattern formation by manipulating the topological charges of square-shaped optical vortex lattices

L. Stoyanov, G. Maleshkov, M. Zhekova, I. Stefanov, D. N. Neshev, G. G. Paulus, And A. Dreischuh^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

In this work, we demonstrate experimentally the formation of 10 different structures consisting of bright beams with flat phase fronts in the focus of a lens (i.e., in the artificial far field). The basic structure used is a large, stable, square-shaped optical vortex (OV) array composed of vortices with alternating topological charges (TCs). The TCs of one individual OV, of a subarray of OVs, or of the complete OV lattice were erased/doubled in the cases of perfect superposition (on-site alignment) or are manipulated in phase in the cases of an offset between the vortices (off-site alignment). A dramatic reshaping of the beam is observed in the far field and shown to be in excellent agreement with numerical simulations.

Original language	English
Pages (from-to)	402-409
Number of pages	8
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	35
Issue number	2
DOIs	https://doi.org/10.1364/JOSAB.35.000402
Publication status	Published - 1 Feb 2018

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title = "Far-field pattern formation by manipulating the topological charges of square-shaped optical vortex lattices",

abstract = "In this work, we demonstrate experimentally the formation of 10 different structures consisting of bright beams with flat phase fronts in the focus of a lens (i.e., in the artificial far field). The basic structure used is a large, stable, square-shaped optical vortex (OV) array composed of vortices with alternating topological charges (TCs). The TCs of one individual OV, of a subarray of OVs, or of the complete OV lattice were erased/doubled in the cases of perfect superposition (on-site alignment) or are manipulated in phase in the cases of an offset between the vortices (off-site alignment). A dramatic reshaping of the beam is observed in the far field and shown to be in excellent agreement with numerical simulations.",

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AU - Stoyanov, L.

AU - Maleshkov, G.

AU - Zhekova, M.

AU - Stefanov, I.

AU - Neshev, D. N.

AU - Paulus, G. G.

AU - Dreischuh, And A.

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AB - In this work, we demonstrate experimentally the formation of 10 different structures consisting of bright beams with flat phase fronts in the focus of a lens (i.e., in the artificial far field). The basic structure used is a large, stable, square-shaped optical vortex (OV) array composed of vortices with alternating topological charges (TCs). The TCs of one individual OV, of a subarray of OVs, or of the complete OV lattice were erased/doubled in the cases of perfect superposition (on-site alignment) or are manipulated in phase in the cases of an offset between the vortices (off-site alignment). A dramatic reshaping of the beam is observed in the far field and shown to be in excellent agreement with numerical simulations.

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Far-field pattern formation by manipulating the topological charges of square-shaped optical vortex lattices

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