Results 31 to 40 of about 18,872 (217)
Analysis on the Radial Vibration of Longitudinally Polarized Radial Composite Tubular Transducer [PDF]
Sensors, 2020 The radial vibration of a radial composite tubular transducer with a large radiation range and power capacity is studied. The transducer is composed of a longitudinally polarized piezoelectric ceramic tube and a coaxial outer metal tube. Assuming that the longitudinal length is much larger than the radius, the electromechanical equivalent circuits of ...
Xiaoyu Wang, Shuyu Lin
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Polarization conversion when focusing cylindrically polarized vortex beams
Scientific Reports, 2016 Currently, cylindrical beams with radial or azimuthal polarization are being used successfully for the optical manipulation of micro- and nano-particles as well as in microscopy, lithography, nonlinear optics, materials processing, and telecommunication ...
Alexey P. Porfirev +2 more
doaj +1 more source
Sensors, 2013 The polarization characteristics of birefringent tissues could be only partially obtained using linearly polarized light in polarization sensitive optical imaging.
Natallia Eduarda Uzunbajakava +7 more
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Frontiers in Physics, 2021 We report on the effects associated with photonic nanojet (PNJ) formation under illumination of a metallic spherical particle with a focused light beam with polarization singularity.
D. O. Plutenko, M. V. Vasnetsov
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Компьютерная оптикаIn this work, the propagation of optical vortices with circular, radial, and azimuthal polarization through subwavelength ring gratings with standard and GRIN substrates using a finite difference time domain method is numerically simulated.
D.A. Savelyev
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The Astrophysical Journal, 2023 To understand the mechanism behind high- z Ly α nebulae, we simulate the scattering of Ly α in a H i halo about a central Ly α source. For the first time, we consider both smooth and clumpy distributions of halo gas, as well as a range of outflow speeds,
Seok-Jun Chang +4 more
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The structure of focused, radially polarized fields
Optics Express, 2006 We present a detailed analysis of the structure of strongly focused, radially polarized electromagnetic fields. The existence of phase singularities of the two components of the electric field is demonstrated. Two different mechanisms to obtain creation or annihilation of these phase singularities are discussed. These are changing the aperture angle of
Diehl, D.W. +2 more
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IEEE Photonics Journal, 2014 Radially polarized orbital angular momentum (OAM) beams could be applied in optical manipulation and optical microscopy. An integrated OAM beam emitter with radially polarized radiation is proposed on shallow-ridge silicon microring with azimuthally ...
Rui Li +5 more
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Vortex sensing analysis of radially and pseudo-radially polarized beams [PDF]
Optical Engineering, 2013 We present a simple method to check the exact realization of a radially polarized light beam by means of a vortex-sensing diffraction grating. The use of this grating easily allows the determination of the topological charges included in each of the two circular polarization components of the incident beam.
Jeffrey A. Davis +5 more
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Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity
FEBS Open Bio, EarlyView.Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz +9 more
wiley +1 more source