Far-field beam reshaping by manipulating the topological charges of hexagonal optical vortex lattices
Stoyanov L, Maleshkov G, Zhekova M, Stefanov , Paulus GG, Dreischuh A (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 20
Article Number: 095601
Journal Issue: 9
Abstract
In this work, we demonstrate experimentally the formation of eight different basic structures consisting of bright beams with flat phase fronts in the focus of a lens (i.e. in the artificial far-field). In all cases considered, the used input structure is a large, stable, hexagon-shaped optical vortex (OV) array composed of vortices with alternating topological charges (TCs). The TCs of one individual OV 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 different offsets between the lattice elementary cells (off-site alignments). A dramatic reshaping of the input beam is observed in the far-field and it is shown to be in excellent agreement with the numerical simulations.
Involved external institutions
Friedrich-Schiller-Universität Jena
Germany (DE)
Sofia University "St. Kliment Ohridski" / Софийски университет "Св. Климент Охридски"
Bulgaria (BG)
Germany (DE)
Sofia University "St. Kliment Ohridski" / Софийски университет "Св. Климент Охридски"
Bulgaria (BG)
How to cite
APA:
Stoyanov, L., Maleshkov, G., Zhekova, M., Stefanov, ., Paulus, G.G., & Dreischuh, A. (2018). Far-field beam reshaping by manipulating the topological charges of hexagonal optical vortex lattices. Journal of Optics, 20(9). https://doi.org/10.1088/2040-8986/aad30e
MLA:
Stoyanov, Lyubomir, et al. "Far-field beam reshaping by manipulating the topological charges of hexagonal optical vortex lattices." Journal of Optics 20.9 (2018).
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