Controllable beam reshaping by mixing square-shaped and hexagonal optical vortex lattices
Stoyanov L, Maleshkov G, Zhekova M, Stefanov , Paulus GG, Dreischuh A (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 9
Article Number: 2128
Journal Issue: 1
DOI: 10.1038/s41598-019-38608-5
Abstract
In the present work we show experimentally and by numerical calculations a substantial far-field beam reshaping by mixing square-shaped and hexagonal optical vortex (OV) lattices composed of vortices with alternatively changing topological charges. We show that the small-scale structure of the observed pattern results from the OV lattice with the larger array node spacing, whereas the large-scale structure stems from the OV lattice with the smaller array node spacing. In addition, we demonstrate that it is possible to host an OV, a one-dimensional, or a quasi-two-dimensional singular beam in each of the bright beams of the generated focal patterns. The detailed experimental data at different square-to-hexagonal vortex array node spacings shows that this quantity could be used as a control parameter for generating the desired focused structure. The experimental data are 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. (2019). Controllable beam reshaping by mixing square-shaped and hexagonal optical vortex lattices. Scientific Reports, 9(1). https://doi.org/10.1038/s41598-019-38608-5
MLA:
Stoyanov, Lyubomir, et al. "Controllable beam reshaping by mixing square-shaped and hexagonal optical vortex lattices." Scientific Reports 9.1 (2019).
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