Evolution of the Phase Singularity of an Orbital Angular Momentum Beam with an Astigmatism Phase
PhotonicsIn this study, we explore the impact of the astigmatism phase on the evolution of the phase singularity of an orbital angular momentum (OAM) beam propagating through free space. The results demonstrate that the high-order phase singularity dispersed into
Chunhao Liang +7 more
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Optomechanical Anti-Lasing with Infinite Group Delay at a Phase Singularity. [PDF]
Physical Review Letters, 2021 Singularities which symbolize abrupt changes and exhibit extraordinary behavior are of a broad interest. We experimentally study optomechanically induced singularities in a compound system consisting of a three-dimensional aluminum superconducting cavity
Yulong Liu +5 more
semanticscholar +3 more sources
Bounce Universe with Finite-Time Singularity
Universe, 2022 This work explains how the presence of a Type-IV singularity (a mild singularity) can influence the dynamics of a bouncing universe. In particular, we examine the bounce cosmology that appears with a Type-IV singularity in the context of a ghost-free ...
Sergei D. Odintsov, Tanmoy Paul
doaj +4 more sources
Deep-learning-based recognition of multi-singularity structured light
Nanophotonics, 2021 Structured light with customized topological patterns inspires diverse classical and quantum investigations underpinned by accurate detection techniques.
Wang Hao +10 more
doaj +2 more sources
The singularity of the partially coherent beam in biological tissue
Results in Physics, 2022 The singularity of the partially coherent beam propagating in biological tissue has been demonstrated, mainly including the properties of the normalized intensity distribution and phase evolution.
Duan Meiling +4 more
doaj +2 more sources
Electrophysiological Rotor Ablation in In-Silico Modeling of Atrial Fibrillation: Comparisons with Dominant Frequency, Shannon Entropy, and Phase Singularity. [PDF]
PLoS One, 2016 Background Although rotors have been considered among the drivers of atrial fibrillation (AF), the rotor definition is inconsistent. We evaluated the nature of rotors in 2D and 3D in- silico models of persistent AF (PeAF) by analyzing phase singularity ...
Hwang M +5 more
europepmc +2 more sources
Singularity transformation through single-pass phase modulation of light [PDF]
Scientific ReportsThe emergence of optical vortex phenomena has generated significant interest in optical technologies. By manipulating light parameters such as amplitude, phase, and polarization, new advances have been made in structured light techniques, which enable ...
Laxminarayan +3 more
doaj +2 more sources
Charge Inversion and Topological Phase Transition at a Twist Angle Induced van Hove Singularity of Bilayer Graphene [PDF]
Nano Letters, 2016 van Hove singularities (VHS's) in the density of states play an outstanding and diverse role for the electronic and thermodynamic properties of crystalline solids.
Youngwook Kim +2 more
exaly +2 more sources
Could M T2 be a singularity variable?
Journal of High Energy Physics, 2021 The algebraic singularity method is a framework for analyzing collider events with missing energy. It provides a way to draw out a set of singularity variables that can catch singular features originating from the projection of full phase space onto the ...
Chan Beom Park
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Formulation of the twisted-light-matter interaction at the phase singularity: the twisted-light gauge [PDF]
, 2014 Twisted light is light carrying orbital angular momentum. The profile of such a beam is a ringlike structure with a node at the beam axis, where a phase singularity exists.
G. Quinteiro, D. Reiter, T. Kuhn
semanticscholar +3 more sources