Results 11 to 20 of about 34,564 (258)
Research Progress on the Twisted Partially Coherent Beams
Nantong Daxue xuebao. Ziran kexue ban, 2020 Under the action of twist phase, partially coherent beams display their unique advantages in many applications fields, such as beam shaping, particle trapping, optical imaging, free-space communications, and so on.
WANG Haiyun; LIU Lin; CAI Yangjian
doaj +1 more source
Image encryption using binary polarization states of light beam
Scientific Reports, 2023 Optical image/data encryption techniques are mostly based on the manipulation of spatial distributions of light's amplitude, phase, and polarization.
Allarakha Shikder, Naveen K. Nishchal
doaj +1 more source
Propagation of partially coherent radiation using Wigner functions
Physical Review Accelerators and Beams, 2021 Undulator radiation from synchrotron light sources must be transported down a beam line from the source to the sample. A partially coherent photon beam may be represented in phase space using a Wigner function, and its transport may use some similar ...
Boaz Nash +4 more
doaj +1 more source
Partially coherent UV–VIS light generation in photonic crystal fiber using femtosecond pulses
Results in Physics, 2021 Light generated in optical fibers due to various nonlinear processes often has a broad spectrum and is commonly considered as a potentially convenient source of seed for tunable wavelength laser systems and many other applications.
Miglė Kuliešaitė +3 more
doaj +1 more source
A sub-wavelength Si LED integrated in a CMOS platform
Nature 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
Tongxin 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
Physical 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
Spatial spectrum of coherence signal for a defocused object images in digital holographic microscopy with partially spatially coherent illumination [PDF]
Компьютерная 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
Holographic beam shaping of partially coherent light
Optics Letters, 2022 We present an algorithmic approach for holographic shaping of partially coherent light, which is described by a mode expansion containing thousands of individual modes. Using gradient descent and algorithmic differentiation, our algorithm is able to find a set of axially separated phase patterns such that each mode undergoes an individually optimized ...
Nicolas Barré, Alexander Jesacher
openaire +3 more sources
Topological protection of partially coherent light [PDF]
Photonics Research, 2022 Topological physics exploits concepts from geometry and topology to implement systems capable of guiding waves in an unprecedented fashion. These ideas have led to the development of photonic topological insulators, which are optical systems whose eigenspectral topology allows the creation of light states that propagate along the edge of the system ...
Konrad Tschernig +4 more
openaire +1 more source