Spatial concentration and distribution of phase singularities in human atrial fibrillation: Insights for the AF mechanism
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Arrhythmia"
DOI: 10.1002/joa3.12547
Abstract: Atrial fibrillation (AF) is characterized by the repetitive regeneration of unstable rotational events, the pivot of which are known as phase singularities (PSs). The spatial concentration and distribution of PSs have not been systematically investigated… read more here.
Keywords: atrial fibrillation; phase singularities; spatial concentration; concentration distribution ... See more keywords
Far-field contributions in multi-electrodes atrial recordings blur distinction between anatomical and functional reentries and may cause imaginary phase singularities - A computational study
Sign Up to like & getrecommendations! Published in 2019 at "Computers in biology and medicine"
DOI: 10.1016/j.compbiomed.2019.02.022
Abstract: BACKGROUND Atrial fibrillation (AF) is the most common cardiac arrhythmia and the most important cause of embolic stroke, requiring new technologies for its better understanding and therapies. Recent approaches to map the electrical activity during… read more here.
Keywords: far field; blur distinction; field; model ... See more keywords
Investigations on the turbulence resistant characteristics of Custom Designed Beams embedded with multiple phase singularities
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2019.105851
Abstract: Abstract Investigation on the propagation of an optical beam carrying phase singularities through atmospheric turbulence attracts researcher involved in the laser projection applications. In this paper, a group of Custom Designed Beams (CDB) are designed… read more here.
Keywords: phase; custom designed; turbulence; atmospheric turbulence ... See more keywords
Topological phase singularities in atomically thin high-refractive-index materials.
Sign Up to like & getrecommendations! Published in 2022 at "Nature communications"
DOI: 10.1038/s41467-022-29716-4
Abstract: Atomically thin transition metal dichalcogenides (TMDCs) present a promising platform for numerous photonic applications due to excitonic spectral features, possibility to tune their constants by external gating, doping, or light, and mechanical stability. Utilization of… read more here.
Keywords: refractive index; atomically thin; topological phase; phase singularities ... See more keywords
On-chip continuous position control of phase singularities in nanoscale.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.425634
Abstract: In this paper, continuous position control of plasmonic phase singularities on a metal-air interface is achieved based on the misaligned coupling between the optical axis of vortex beam and nano ring plasmonic lens. The formula… read more here.
Keywords: continuous position; position control; phase singularities; phase ... See more keywords
Optical phase singularities and superluminal motion in unbounded space
Sign Up to like & getrecommendations! Published in 2021 at "Computer Optics"
DOI: 10.18287/2412-6179-co-879
Abstract: In this paper, we summarize a remarkable result obtained by Soskin et al. in Phys Rev A 56, 4064 (1997). We show that for an on-axis superposition of two different-waist Laguerre-Gauss beams with numbers (0,… read more here.
Keywords: optical phase; singularities superluminal; waist; phase singularities ... See more keywords