Results 21 to 30 of about 54,944 (266)
IEEE Photonics Journal, 2018 We propose the generation of high-purity perfect cylindrical vector beams (PCVB) using the Fourier transformation of Bessel–Gauss vector beams.
Prabin Pradhan, Manish Sharma, Bora Ung
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Компьютерная оптика, 2023 We investigate the spin angular momentum (SAM) of two-order cylindrical vector beams at the tight focus. Such beams are a generalization of the conventional cylindrical vector beams since the transverse field components on the Cartesian axes have ...
A.A. Kovalev, V.V. Kotlyar
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Switchable phase and polarization singular beams generation using dielectric metasurfaces
Scientific Reports, 2017 Singular beams which possess helical phase wavefront or spatially inhomogeneous polarization provide new freedom for optical field manipulation. However, conventional schemes to produce the singular beams have difficulty in realizing the flexible switch ...
Yanliang He +7 more
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On-chip generation of adjustable cylindrical vector beams
Optics Express, 2023 Cylindrical vector (CV) beams have sparked considerable interest due to their extraordinary vectorial properties, desirable for applications ranging from microscopy to high energy physics. Increasing demand for cost-effective, small-footprint photonics has fueled the development of photonic integrated circuits (PICs) capable of generating structured ...
C. Cisowski +4 more
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Mid-infrared cylindrical vector beams enabled by dielectric metasurfaces
APL Materials, 2021 Over the last decade, photonics in the mid-infrared (mid-IR) frequency range had major advances in both generation and detection of light. However, efficient manipulation of the mid-IR light still faces many challenges.
Anastasia Zalogina +5 more
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Spin and orbital angular momenta of acoustic beams [PDF]
, 2019 We analyze spin and orbital angular momenta in monochromatic acoustic wave fields in a homogeneous medium. Despite being purely longitudinal (curl-free), inhomogeneous acoustic waves generically possess nonzero spin angular momentum density caused by the
Bliokh, Konstantin Y., Nori, Franco
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Generation of cylindrical and elliptical symmetrical vector beam on the Mach–Zehnder interferometer
AIP Advances, 2018 We propose a principal scheme to generate the cylindrical and the elliptical symmetrical vector beam based on a modified Mach-Zehnder interferometer. The modified Mach-Zehnder interferometer, the wave plates, the Polarizing Beam Splitter (PBS) and the ...
Xiang Xu +5 more
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Polarization-Selective Holographic Metasurface For Creating Cylindrical Vector Beams
IEEE Photonics Journal, 2019 Generalized cylindrical vector beams (GCVB) are spatially polarization inhomogeneous. It could be considered as a combination of a radially polarized beam and an azimuthally polarized beam with different weighting factors.
Jiannong Chen, Qinfeng Xu, Jing Han
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Physical meaning of the radial index of Laguerre-Gauss beams [PDF]
, 2015 The Laguerre-Gauss modes are a class of fundamental and well-studied optical fields. These stable, shape-invariant photons - exhibiting circular-cylindrical symmetry - are familiar from laser optics, micro-mechanical manipulation, quantum optics ...
Krenn, Mario, Plick, William N.
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Photonics, 2021 Recently, there has been increased interest in the shaping of light fields with an inverse energy flux to guide optically trapped nano- and microparticles towards a radiation source.
Andrey V. Ustinov +2 more
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