Results 21 to 30 of about 34,564 (258)

Partially Coherent Illumination Based Point-Diffraction Digital Holographic Microscopy Study Dynamics of Live Cells

open access: yesFrontiers in Physics, 2021
This paper presents a partially coherent point-diffraction digital holographic microscopy (PC-pDHM) prototype and demonstrates its application in label-free imaging of the dynamic processes of live cells.
Kequn Zhuo   +11 more
doaj   +1 more source

Propagation of partially coherent light through a light pipe

open access: yesOptics Express, 2013
In laser projection applications, laser light modules are often combined with rotating diffusers in order to reduce the appearance of speckle on the projection screen. The rotation of a diffuser in a laser beam generates a beam of partially coherent light.
Roelandt, Stijn   +4 more
openaire   +3 more sources

Nonparaxial Propagation of Bessel Correlated Vortex Beams in Free Space

open access: yesMicromachines, 2022
The nonparaxial propagation of partially coherent beams carrying vortices in free space is investigated using the method of decomposition of the incident field into coherent diffraction-free modes.
Nikolai I. Petrov
doaj   +1 more source

Spatial coherence control and analysis via micromirror-based mixed-state ptychography

open access: yesNew Journal of Physics, 2021
Flexible and fast control of the phase and amplitude of coherent light, enabled by digital micromirror devices (DMDs) and spatial light modulators, has been a driving force for recent advances in optical tweezers, nonlinear microscopy, and wavefront ...
Ruslan Röhrich   +3 more
doaj   +1 more source

Mutual optical intensity propagation through non-ideal two-dimensional mirrors

open access: yesJournal of Synchrotron Radiation, 2023
The mutual optical intensity (MOI) model is a partially coherent radiation propagation tool that can sequentially simulate beamline optics and provide beam intensity, local degree of coherence and phase distribution at any location along a beamline. This
Xiangyu Meng   +7 more
doaj   +1 more source

Effects of Atmospheric Turbulence on Lensless Ghost Imaging with Partially Coherent Light

open access: yesApplied Sciences, 2018
Ghost imaging with partially coherent light through two kinds of atmospheric turbulences: monostatic turbulence and bistatic turbulence, is studied, both theoretically and experimentally.
Xianlong Liu   +3 more
doaj   +1 more source

Scattering of Partially Coherent Vector Beams by a Deterministic Medium Having Parity-Time Symmetry

open access: yesPhotonics, 2022
We study the scattering properties of the partially coherent vector beams with the deterministic media having the classic symmetric and parity-time (PT) symmetric scattering potential functions.
Xuan Zhang   +3 more
doaj   +1 more source

Focusing of partially coherent light into planar waveguides

open access: yesOptics Express, 2004
Edge coupling of a focused partially coherent Gaussian Schell-model beam into a planar dielectric waveguide is examined. The incident field is decomposed into a sum of coherent modes that are expressed as a discrete superposition of plane-wave components. A model based on the rigorous diffraction theory of gratings is used to replace the waveguide with
Toni, Saastamoinen   +4 more
openaire   +2 more sources

Transmission Characteristics and Spatial Coherence of Partially Coherent Light-Emitting Diode Array in the Ocean

open access: yesPhotonics, 2023
Underwater LED light sources are commonly implemented in array configurations with a wide-angle field of view, primarily catering to high-speed communication within a few meters.
Zhifang Miao   +4 more
doaj   +1 more source

Partially coherent conical refraction promises new counter-intuitive phenomena

open access: yesScientific Reports, 2022
In this paper, we extend the paraxial conical refraction model to the case of the partially coherent light using the unified optical coherence theory. We demonstrate the decomposition of conical refraction correlation functions into well-known conical ...
V. Yu. Mylnikov   +3 more
doaj   +1 more source

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