Results 11 to 20 of about 749,179 (255)
Minimal Focal Spot Size Measured Based on Intensity and Power Flow
Sensors, 2021 It is shown, theoretically and numerically, that the distributions of the longitudinal energy flow for tightly focused light with circular and linear polarization are the same, and that the spot has circular symmetry.
Victor V. Kotlyar +2 more
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Laguerre-Gaussian modes generated vector beam via nonlinear magneto-optical rotation
Scientific Reports, 2021 Laguerre-Gaussian (LG) beams contain a helical phase front with a doughnut-like intensity profile. We use the LG beam to introduce a rather simple method for generation of a vector beam (VB), a beam with spatially-dependent polarization in the beam cross
Mohsen Ghaderi Goran Abad +1 more
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Spin Hall Effect in the Paraxial Light Beams with Multiple Polarization Singularities
Micromachines, 2023 Elements of micromachines can be driven by light, including structured light with phase and/or polarization singularities. We investigate a paraxial vectorial Gaussian beam with multiple polarization singularities residing on a circle.
Alexey A. Kovalev +2 more
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Four-zone reflective polarization conversion plate [PDF]
, 2014 The work was partially funded by the Russian Foundation Basic Research grants ## 13-07-97008, 14-07-31092, and 14-07-97039, the Russian Federation Presidential grant for state support of young Russian scientists with Candidate's degree MK-4816.2014.2 ...
L. O'Faolain +7 more
core +1 more source
Photonics, 2023 A thorough integral formulation describing the second harmonic generation under tightly focused linearly and radially polarized beams for an arbitrary distribution of the nonlinear susceptibility over the surface of isotropic media was presented.
Sergey Scherbak +3 more
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Radial-Artery or Saphenous-Vein Grafts in Coronary-Artery Bypass Surgery [PDF]
, 2018 BACKGROUND: The use of radial-artery grafts for coronary-artery bypass grafting (CABG) may result in better postoperative outcomes than the use of saphenous-vein grafts.
Benedetto, Umberto +7 more
core +1 more source
Improvement of Laser Trapping Based Microprobe in Laser Shaded Condition
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012 A micro-probe based on laser trapping has been proposed for the probe system of a nano-coordinate measuring machine. This study focused on the “shadow effect,” which is the case wherein a partial beam for laser trapping is shaded by the ...
Masaki MICHIHATA +2 more
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The Astrophysical Journal Letters, 2023 We report Atacama Large Millimeter/submillimeter Array (ALMA) polarization observations at 3 and 0.9 mm toward the GG Tau A system. In the ring, the percentage is relatively homogeneous at 3 mm, being 1.2%, while it exhibits a clear radial variation at 0.
Ya-Wen Tang +9 more
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IEEE Photonics Journal, 2012 A radially periodic slab waveguide grating of concentric circular lines composed of a corrugated quartz substrate and a ZnS waveguiding layer under the condition of normal incidence $ \hbox{TE}_{0}$ mode coupling at the 442-nm wavelength of a circularly ...
Yves Jourlin +5 more
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Fully symmetric diffraction-interference beam shaper for radially polarized light on a 1530-nm wavelength [PDF]
Компьютерная оптика, 2019 A completely symmetrical scheme of a shaper of cylindrical vector beams is proposed in which two diffractive axicons and an interference polarizer placed in-between form a sandwich structure of the smallest possible thickness. The design and experimental
Vladimir Podlipnov +2 more
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