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Article

Analysis of Hybrid Vector Beams Generated with a Detuned Q-Plate

1
Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, 03202 Elche, Spain
2
Departamento de Física, Universidad del Valle, Cali 760032, Colombia
3
Departamento de Física Aplicada, Universidad Miguel Hernández de Elche, 03202 Elche, Spain
4
Departamento de Ciencia de Materiales, Óptica y Tecnología Electrónica, Universidad Miguel Hernández de Elche, 03202 Elche, Spain
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(10), 3427; https://doi.org/10.3390/app10103427
Received: 7 April 2020 / Revised: 10 May 2020 / Accepted: 11 May 2020 / Published: 15 May 2020
(This article belongs to the Special Issue Ultrafast Vortex Pulses)
We use a tunable commercial liquid-crystal device tuned to a quarter-wave retardance to study the generation and dynamics of different types of hybrid vector beams. The standard situation where the q-plate is illuminated by a Gaussian beam is compared with other cases where the input beam is a vortex or a pure vector beam. As a result, standard hybrid vector beams but also petal-like hybrid vector beams are generated. These beams are analyzed in the near field and compared with the far field distribution, where their hybrid nature is observed as a transformation of the intensity and polarization patterns. Analytical calculations and numerical results confirm the experiments. We include an approach that provides an intuitive physical explanation of the polarization patterns in terms of mode superpositions and their transformation upon propagation based on their different Gouy phase. The tunable q-plate device presents worthy advantages, since it allows a compact and efficient generation of pure and hybrid vector beams to study these effects. View Full-Text
Keywords: q-plates; vector beams; orbital angular momentum; vortex beams; polarization; liquid-crystal retarders; Gouy phase q-plates; vector beams; orbital angular momentum; vortex beams; polarization; liquid-crystal retarders; Gouy phase
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MDPI and ACS Style

Quiceno-Moreno, J.C.; Marco, D.; Sánchez-López, M.d.M.; Solarte, E.; Moreno, I. Analysis of Hybrid Vector Beams Generated with a Detuned Q-Plate. Appl. Sci. 2020, 10, 3427. https://doi.org/10.3390/app10103427

AMA Style

Quiceno-Moreno JC, Marco D, Sánchez-López MdM, Solarte E, Moreno I. Analysis of Hybrid Vector Beams Generated with a Detuned Q-Plate. Applied Sciences. 2020; 10(10):3427. https://doi.org/10.3390/app10103427

Chicago/Turabian Style

Quiceno-Moreno, Julio C., David Marco, María d.M. Sánchez-López, Efraín Solarte, and Ignacio Moreno. 2020. "Analysis of Hybrid Vector Beams Generated with a Detuned Q-Plate" Applied Sciences 10, no. 10: 3427. https://doi.org/10.3390/app10103427

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