Results 21 to 30 of about 4,580,641 (293)

A sub-wavelength Si LED integrated in a CMOS platform

open access: yesNature Communications, 2023
Integrated photonic systems require nanoscale on-chip light sources. Here Li et al., fabricate a silicon chip with LEDs smaller than the wavelength of light. This characteristic implies a partially coherent light emission, which allows the realization of
Zheng Li   +8 more
doaj   +1 more source

Thermal Metasurfaces: Complete Emission Control by Combining Local and Nonlocal Light-Matter Interactions

open access: yesPhysical Review X, 2021
Metasurfaces have been enabling the miniaturization and integration of complex optical functionalities within an ultrathin platform by engineering the scattering features of localized modes.
Adam C. Overvig   +2 more
doaj   +1 more source

Optical eigenmode description of partially coherent light fields [PDF]

open access: yes, 2019
Optical eigenmodes describe coherent solutions of Maxwells equations that are orthogonal to each other. These modes form a natural basis set of the electromagnetic Hilbert space that can be used to describe optical scattering interactions in a simple way.
Mazilu, Michael
core   +1 more source

High-speed transmission characteristics of nonlinear spectral broadening carrier in turbulent channel

open access: yesTongxin xuebao, 2021
The nonlinear spectral broadening light source was used as a partially coherent carrier source with high repetition frequency to carry out experimental research on high-speed information transmission in atmospheric turbulence channels.A partially ...
Tianshu WANG   +5 more
doaj   +2 more sources

Spatial spectrum of coherence signal for a defocused object images in digital holographic microscopy with partially spatially coherent illumination [PDF]

open access: yesКомпьютерная оптика, 2018
We study the effect of a decrease in the magnitude of the coherence signal in high-frequency spatial spectrum for a defocused object image in transmission digital holographic microscopy with quasimonochromatic partially spatially coherent illumination. A
Daria Klychkova, Vladimir Ryabukho
doaj   +1 more source

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

Propagation of Partially Coherent Light in non-Hermitian Lattices [PDF]

open access: yes, 2022
Band theory for partially coherent light is introduced by using the formalism of second-order classical coherence theory under paraxial approximation. It is demonstrated that the cross-spectral density function, describing correlations between pairs of ...
P. A. Brandão (14359317)   +1 more
core   +2 more sources

Probing the modal characteristics of novel beam shapes [PDF]

open access: yes, 2013
In this thesis, an investigation into the modal characteristics of novel beam shapes is presented. Sculpting the phase profile of a Gaussian beam can result in the generation of a beam with unique properties.
Mourka, Areti
core   +2 more sources

Terahertz pump-probe experiment at the synchrotron light source MLS [PDF]

open access: yes, 2013
We have developed a pump-probe experiment utilizing broad-band coherent terahertz synchrotron radiation provided by the Metrology Light Source (MLS).
H.-W. Hubers   +15 more
core   +1 more source

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