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Continuously Variable Topological Charge of a Vector Vortex Beam Generated by an Integrated Metasurface

We propose and numerically verify a new method for generating a vector vortex beam, in which the twist of the wavefront varies continuously along the beam axis, offering potential benefits for distance ...
Xu Fang
exaly   +2 more sources

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Generation and amplification of vector vortex beams

Laser Resonators, Microresonators, and Beam Control XX, 2018
The use of beams carrying orbital angular momentum (OAM) has become ubiquitous and topical in a variety of research fields. More recently, there has been a growing interest in exotic OAM carrying beams with spatially variant polarization, so called Poincare sphere beams, with the well known cylindrical vector beams (CVBs) a particular example; for ...
Andrew Forbes, Darryl Naidoo, Igor Litvin, Nyameko Lisa, Hend Sroor   +4 more
openaire   +1 more source

Measuring the nonseparability of vector vortex beams

Physical Review A, 2015
Vector beams have the defining property of nonseparable spatial and polarization degrees of freedom and are now routinely generated in the laboratory and used in a myriad of applications. Here we exploit the nonseparability of such beams, akin to entanglement of quantum states, to apply tools traditionally associated with quantum measurements to these ...
Melanie McLaren, Thomas Konrad, Andrew Forbes   +2 more
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Classical entanglement of vector vortex beams

SPIE Proceedings, 2015
Vector beams are defined by spatially inhomogeneous states of polarization, that is, the spatial distribution and polarization state of the beam are non-separable. These beams have found interest in a variety of optical fields such as microscopy, interferometry and optical tweezing. It is therefore important to determine the degree to which these beams
Melanie McLaren, Thomas Konrad, Andrew Forbes   +2 more
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Flexible generation of the generalized vector vortex beams

Optics Communications, 2021
Abstract We extend the existing vector vortex beams and demonstrate the creation of the generalized vector vortex beams, which is based on the superposition of any pair of orthogonal polarized base vectors with different spiral phases. Besides, we propose and experimentally demonstrate a flexible optical configuration, which modulates the generalized
Hao Zhang, Bintao Du, Guodong Tong, Jun Xia   +3 more
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Polarization conversion at sharp focusing of vector vortex beams

2017 19th International Conference on Transparent Optical Networks (ICTON), 2017
We demonstrate the conversion of cylindrically polarized laser beams in an orthogonal polarization state by introducing a high-order vortex phase singularity. Our theoretical and experimental investigations show that increasing the order of the phase singularity leads to effective generation of azimuthal polarization from radial polarization.
Svetlana Khonina, Dmitry Savelyev
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Scattering of vector vortex beams: polarization speckles

Asia Communications and Photonics Conference 2016, 2016
We generate the vector vortex or polarization singular beams using a polarization sensitive spatial light modulator displaying an on-axis hologram of an optical vortex. The generated vector beams are characterized by polarimetry and then scattered through a ground glass plate.
Salla Gangi Reddy, Vijay Kumar, R. P. Singh, Yoko Miyamoto   +3 more
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Vector-vortex beams with spatio-temporal couplings

CLEO 2023, 2023
Vector-vortex beams with space-time couplings will be discussed along with their interesting and useful properties for light-matter interaction.
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Focusing properties of vector vortex-bearing beams

Optics and Lasers in Engineering, 2012
Abstract Focusing properties of the vector vortex-bearing beams are investigated theoretically by vector diffraction theory. Simulation results show that the intensity distribution in focal region can be altered considerably by adjusting topological charge m and the numerical aperture (NA) of the focusing optical system.
Jinsong Li, Tongtong Lu, Ling Guo
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Focusing properties of cylindrical vector vortex beams

Optics Communications, 2018
Abstract In this paper, following Richards and Wolf vectorial diffraction theory, the focusing properties of cylindrical vector vortex beams (CVVB) are investigated, and a diffractive optical element (DOE) is designed to spatially modulate the amplitude of the CVVB.
Zhang Xiaoqiang, Chen Ruishan, Wang Anting   +2 more
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