Spatial coherence and the persistence of high diversity in spatially heterogeneous landscapes
Sign Up to like & getrecommendations! Published in 2022 at "Ecology and Evolution"
DOI: 10.1002/ece3.9004
Abstract: Abstract Our planet hosts a variety of highly diverse ecosystems. The persistence of high diversity is generally attributed to factors such as the structure of interactions among species and the dispersal of species in metacommunities.… read more here.
Keywords: spatial coherence; high diversity; persistence high; heterogeneous landscapes ... See more keywords
Study on the wave structure function and spatial coherence radius with a power-law spectrum of oceanic turbulence
Sign Up to like & getrecommendations! Published in 2019 at "Optik"
DOI: 10.1016/j.ijleo.2019.04.124
Abstract: Abstract Based on the recently proposed power-law spectrum for oceanic turbulence [Opt. Express 26, 10188 (2018)] and the Rytov approximation, the new and exact theoretical forms for the wave structure function (WSF) of plane and… read more here.
Keywords: coherence radius; power law; spectrum; spatial coherence ... See more keywords
Experimental study: Underwater propagation of polarized flat top partially coherent laser beams with a varying degree of spatial coherence
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2018.04.014
Abstract: Abstract We report on experiments where spatially partially coherent laser beams with flat top intensity profiles were propagated underwater. Two scenarios were explored: still water and mechanically moved entrained salt scatterers. Gaussian, fully spatially coherent… read more here.
Keywords: flat top; laser beams; spatial coherence; coherent laser ... See more keywords
Collapse and revival of spatial coherence on free-space propagation
Sign Up to like & getrecommendations! Published in 2022 at "Optics Communications"
DOI: 10.1016/j.optcom.2021.127511
Abstract: Abstract We demonstrate analytically and numerically that the transverse spatial coherence (the spectral degree of coherence) of the field radiated by two partially correlated electromagnetic sources oscillates as a function of propagation distance in free… read more here.
Keywords: propagation; coherence; collapse revival; spatial coherence ... See more keywords
Optical image reconstruction in 4f imaging system: Role of spatial coherence structure engineering
Sign Up to like & getrecommendations! Published in 2021 at "Applied Physics Letters"
DOI: 10.1063/5.0046288
Abstract: We examine the effect of spatial coherence on the image quality of a classic 4f imaging system when its Fourier plane is partially blocked by an opaque obstacle. We find that although reducing the degree… read more here.
Keywords: image; image quality; coherence; spatial coherence ... See more keywords
Experimental synthesis of higher-order Poincaré sphere beam array with spatial coherence engineering
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Letters"
DOI: 10.1063/5.0147831
Abstract: We propose a compact method to experimentally synthesize a class of vector beam arrays with periodic higher-order Poincaré sphere (HOPS) polarization states by engineering the spatial coherence structure of a partially coherent light source. We… read more here.
Keywords: spatial coherence; coherence; higher order; beam array ... See more keywords
Impact of the spatial coherence on self-interference digital holography
Sign Up to like & getrecommendations! Published in 2020 at "Chinese Physics B"
DOI: 10.1088/1674-1056/abd766
Abstract: Owing to the unique feature that the signal and reference waves of self-interference digital holography (SIDH) contain the same spatial information from the same point of object, compared with conventional digital holography, the SIDH has… read more here.
Keywords: interference digital; coherence; digital holography; spatial coherence ... See more keywords
How will climate change affect spatial coherence of streamflow and groundwater droughts in Great Britain?
Sign Up to like & getrecommendations! Published in 2023 at "Environmental Research Letters"
DOI: 10.1088/1748-9326/acd655
Abstract: How climate change will affect spatial coherence of droughts is a key question that water managers must answer in order to adopt strategies to mitigate impacts on water resources. Water transfers from regions with excess… read more here.
Keywords: climate change; spatial coherence; coherence; water ... See more keywords
Controlling propagation of spatial coherence for enhanced imaging through scattering media
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.043839
Abstract: It is known that a spatially partially coherent light field produces better imaging contrast compared to a spatially coherent field and that the contrast increases as the spatial coherence length of the field becomes smaller.… read more here.
Keywords: transverse planes; coherence; controlling propagation; spatial coherence ... See more keywords
Numerical study of the spatial coherence of light in collective spontaneous emission
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.110.043705
Abstract: We present a numerical study of the spatial coherence of light that is radiated from a dilute ensemble of atoms. The spatial coherence is established as a result of the collective (cooperative) coupling of the… read more here.
Keywords: coherence light; study spatial; numerical study; spatial coherence ... See more keywords
Low-Spatial-Coherence Random Lasers Enhanced by TiN/Graphene Self-Assembly Structures for High-Resolution Imaging in Chaotic Fluid Environments
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2024.3406715
Abstract: Speckle is a persistent disease that damages image quality and needs to be suppressed for optical imaging. One effective method is to use light sources with low spatial coherence. In this article, a low spatial… read more here.
Keywords: tin graphene; graphene self; low spatial; assembly structures ... See more keywords