Results 51 to 60 of about 43,576 (316)
The work shows that in linearly polarized Laguerre-Gaussian beams passing through an anisotropic medium at an angle to the optical axis of the crystal, the distribution of optical vortices is devoid of axial symmetry. It is shown that the trajectories of
Yu.A. Egorov, A.F. Rubass
doaj +1 more source
Multiplexed vortex beam-based optical tweezers generated with spiral phase mask
Summary: The design and implementation of a multiplexed spiral phase mask in an experimental optical tweezers setup are presented. This diffractive optical element allows the generation of multiple concentric vortex beams with independent topological ...
Francisco M. Muñoz-Pérez +5 more
doaj +1 more source
Vortex-vortex control in exciton-polariton condensates
Vortices are widely studied in fields ranging from nonlinear optics to magnetic systems and superconductors. A vortex carries a binary information corresponding to its topological charge, `plus' or `minus', that can be used for information storage and ...
Ma, Xuekai, Schumacher, Stefan
core +1 more source
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff +11 more
wiley +1 more source
Determining Vortex-Beam Superpositions by Shear Interferometry
Optical modes bearing optical vortices are important light systems in which to encode information. Optical vortices are robust features of optical beams that do not dissipate upon propagation.
Behzad Khajavi +2 more
doaj +1 more source
SmallTalk: a novel small‐sized fusion tag for peptide expression and purification
The SmallTalk fusion tag allows for the efficient expression and purification of soluble recombinant proteins or peptides in Escherichia coli. Testing with SmallTalk‐GFP confirmed that the proteins were soluble and folded correctly, while SmallTalk‐Bin1b maintained its antimicrobial activity against various bacterial isolates. This streamlined workflow
Atika Tariq +3 more
wiley +1 more source
Astigmatic transformation of a fractional-order edge dislocation
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
Diffusion induced decoherence of stored optical vortices
We study the coherence properties of optical vortices stored in atomic ensembles. In the presence of thermal diffusion, the topological nature of stored optical vortices is found not to guarantee slow decoherence.
Jiang, L. +3 more
core +1 more source
Optical Surface Vortices and Their Use in Nanoscale Manipulation [PDF]
Following a brief overview of the physics underlying the interaction of twisted light with atoms at near-resonance frequencies, the essential ingredients of the interaction of atoms with surface optical vortices are described.
Andrews, D. L. +2 more
core +1 more source
Optical vortices and vortex solitons [PDF]
Optical vortices are phase singularities nested in electromagnetic waves that constitute a fascinating source of phenomena in the physics of light and display deep similarities to their close relatives, quantized vortices in superfluids and Bose-Einstein condensates.
Desyatnikov, Anton S +2 more
openaire +2 more sources

