Results 61 to 70 of about 42,393 (288)
Pinning and collective modes of a vortex lattice in a Bose-Einstein condensate
, 2005 We consider the ground state of vortices in a rotating Bose-Einstein condensate that is loaded in a corotating two-dimensional optical lattice. Due to the competition between vortex interactions and their potential energy, the vortices arrange themselves
A. A. Abrikosov +14 more
core +2 more sources
Visualization of the birth of an optical vortex using diffraction from a triangular aperture [PDF]
, 2011 Funding: EPSRC, UKThe study and application of optical vortices have gained significant prominence over the last two decades. An interesting challenge remains the determination of the azimuthal index (topological charge) l of an optical vortex beam for a
Baumgartl, J. +4 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study investigates innovative thermoreversible hydrogels derived from S53P4 bioactive glass extracts to aid in the healing of infected diabetic foot wounds. These injectable gels, which gel at body temperature, release beneficial ions and remain stable over time.
Marian G. Vargas Guerrero +9 more
wiley +1 more source
Topological Charge of Multi-Color Optical Vortices
Photonics, 2022 The topological charge of an optical vortex is a quantity rather stable against phase distortions, for example, turbulence. This makes the topological charge attractive for optical communications, but for many structured beams it is unknown.
Victor Victorovich Kotlyar +3 more
doaj +1 more source
Topological aberration of optical vortex beams and singularimetry of dielectric interfaces
, 2012 The splitting of a high-order optical vortex into a constellation of unit vortices, upon total reflection, is described and analyzed. The vortex constellation generalizes, in a local sense, the familiar longitudinal Goos-H\"anchen and transverse Imbert ...
Dennis, Mark R., Götte, Jörg B.
core +1 more source
Direct fiber vector eigenmode multiplexing transmission seeded by integrated optical vortex emitters [PDF]
, 2017 Spatial modes have received substantial attention over the last decades and are used in optical communication applications. In fiber-optic communications, the employed linearly polarized modes and phase vortex modes carrying orbital angular momentum can ...
Cai, Xin-Lun +11 more
core +1 more source
Optical vortices at Fano resonances
Optics Letters, 2012 We study the transmission properties of a one-dimensional array with intersite side-coupled defect and demonstrate that, as the system undergoes sharp Fano resonance, it exhibits geometry-induced vorticity of the energy flux. The optical vortex inverts its handedness at the Fano resonance, revealing a strong link between two phenomena, both being of ...
Xu, Yi +2 more
openaire +3 more sources
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Statistical studies on optical vortices in dynamic speckle fields
Journal of Biomedical Photonics & Engineering, 2018 New parameters to statistically describe and differentiate between different decorrelation behaviors in dynamic speckle fields are described. These decorrelation behaviors are surrogate descriptors of the dynamics of the underlying processes in object ...
Anindya Majumdar, Sean J. Kirkpatrick
doaj +1 more source
Astigmatic transformation of a fractional-order edge dislocation
Компьютерная оптика, 2022 It is shown theoretically that an astigmatic transformation of an edge dislocation (straight line of zero intensity) of the ν-th order (ν=n+α is a real positive number, n is integer ...
V.V. Kotlyar +3 more
doaj +1 more source