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optical vortices

Interaction of electron vortices and optical vortices with matter and processes of orbital angular momentum exchange

Interaction of electron vortices and optical vortices with matter and processes of orbital angular momentum exchange

... as optical vortices in the form of Laguerre-Gaussian and Bessel light beams [3–6]; and, very recently, in electron microscopy as electron vortices ...on optical vortex (OV) beams, so much so ...

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Knotted optical vortices in exact solutions to Maxwell's equations

Knotted optical vortices in exact solutions to Maxwell's equations

... in optical vortices, the lines of zero intensity of an electromagnetic ...These vortices and their topology have up to now primarily been studied in parax- ial fields ...introduce optical ...

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The creation and annihilation of optical vortices using cascade conical diffraction

The creation and annihilation of optical vortices using cascade conical diffraction

... an optical vortex of charge ...of optical vortices in an all- optical arrangement that is solely dependent on the incident polarisation and vortex ...

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Abstract: Optical modes bearing optical vortices are important light systems in which to encode

Abstract: Optical modes bearing optical vortices are important light systems in which to encode

... Collinear superpositions of paraxial beams bearing optical vortices produce a composite mode that can be diagnosed to determine through the vortices the composition of the modes in it. This is due to ...

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Optical vortices in dispersive nonlinear Kerr type media

Optical vortices in dispersive nonlinear Kerr type media

... of vortices, using split-step Fourier method, is performed ...for vortices with these of a standard Gaussian pulse, it can be clearly seen that the vortices propa- gate without any changing of their ...

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Optical vortices
and Airy spiral in chiral crystals  

Optical vortices and Airy spiral in chiral crystals  

... 7KHSDSHULQFOXGHVIRXUVHFWLRQV7KHPDWUL[DSSURDFKIRUGHVFULELQJEHDPSURSDJD WLRQWKURXJKDFKLUDOFU\VWDOLVFRQVLGHUHGLQWKHILUVWVHFWLRQ7KHVHFRQGVHFWLRQLVGH YRWHGWRDQDO\VLVRIILHOGVWUXFWXUHRIWKHEHDPV[r] ...

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Molecular buffer using a PANDA ring resonator for drug delivery use

Molecular buffer using a PANDA ring resonator for drug delivery use

... The optical vortices can be generated and controlled to form the trapping tools in the same way as the optical ...intense optical vortices generated within the PANDA ring resonator, the ...

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Local phase structure of wave dislocation lines: twist and twirl

Local phase structure of wave dislocation lines: twist and twirl

... Twist and twirl for anisotropic three-dimensional wave dislocations are not important for the simplest optical vortices because they are isotropic and therefore not subject to the subtleties described here. ...

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Multi-access drug delivery network and stability

Multi-access drug delivery network and stability

... intense optical vortices within the PANDA ring resonator, the required molecules (drug volumes) can be trapped and moved dynamically within the molecular bus networks, in which the required drug delivery ...

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Optical ferris wheel for ultracold atoms

Optical ferris wheel for ultracold atoms

... Abstract: We propose a versatile optical ring lattice suitable for trap- ping cold and quantum degenerate atomic samples. We demonstrate the realisation of intensity patterns from pairs of Laguerre-Gauss (exp(iℓ θ ...

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Proposal for Alzheimer’s diagnosis using molecular buffer and bus network

Proposal for Alzheimer’s diagnosis using molecular buffer and bus network

... an optical trapping tool for tangle protein (tau tangles, β-amyloid plaques) and molecular motor storage and delivery using a PANDA ring resonator is ...The optical vortices can be generated and ...

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Effect of the radial and azimuthal mode indices of a partially coherent vortex field upon a spatial correlation singularity

Effect of the radial and azimuthal mode indices of a partially coherent vortex field upon a spatial correlation singularity

... systems. Vortices denote singular (zero intensity) points in a given field that have indeterminate phase, and phase circulation a multiple of 2 π in the plane transversal to the direction of wave propagation ...

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The matrix model of vortex-beam
quadrefringence in a uniaxial crystal

The matrix model of vortex-beam quadrefringence in a uniaxial crystal

... of optical vortices (see the phase portrait displayed in ...non-compensated optical vortices. When the beam is tilted, some of the vortices leave the beam axis, forming in the ...

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Paraxially annihilating
vortex-beams in uniaxial crystals 

Paraxially annihilating vortex-beams in uniaxial crystals 

... the optical current P z ( ,1 max ) are significantly larger than P z ( max ) , we have per- formed a normalization yielding the ratios of P z ( ,1 max ) and P z ( max ) to their initial values at z = ...toroidal ...

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Embedded nanomicro syringe on chip for molecular therapy

Embedded nanomicro syringe on chip for molecular therapy

... modified optical add/drop filter, named after the well known Chinese ...by optical vortices in the liquid core waveguide which can be embedded on a chip, and can be used for long-term ...intense ...

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Dynamics of near shore vortices

Dynamics of near shore vortices

... straight-line vortices, or, equivalents, point vortices. If point vortices are taken, the model is valid as it stands only if applied to unbounded fluids or if the vortices are in between two ...

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Vortices in the wakes of AGB stars

Vortices in the wakes of AGB stars

... Vortices at the interstellar size scale have been predicted since some of the first ’high’ resolution calculations by Woodward (1976) where Kelvin-Helmholtz instabilities begin the breakup of interstellar clouds. ...

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On the controllability of saturating crossflow vortices

On the controllability of saturating crossflow vortices

... Görtler vortices (Floryan and Saric, 1982; Hall, 1983) - though Hall (1985) showed these have little effect on wings with greater-than-moderate sweep angles and T-S instabilities are expected to grow in their ...

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Trapped vortices in rotating flow

Trapped vortices in rotating flow

... Trapped vortices in rotating flow 213 The initial distribution of potential vorticity is non-zero only on that k i t e area where the local depth differs from the basic depth H,.. [r] ...

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Vortices and atoms in the Maxwellian era

Vortices and atoms in the Maxwellian era

... By the time of Maxwell’s death in 1879, the basic laws of vortices in a perfect fluid in three- dimensional Euclidean space had been established, as had their importance to physics. For one, dominant, group of ...

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