Results 11 to 20 of about 4,580,641 (293)

Holographic beam shaping of partially coherent light

open access: yesOptics 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   +4 more sources

Unidirectional imaging with partially coherent light

open access: yesAdvanced Photonics Nexus
Unidirectional imagers form images of input objects only in one direction, e.g., from field-of-view (FOV) A to FOV B, while blocking the image formation in the reverse direction, from FOV B to FOV A. Here, we report unidirectional imaging under spatially partially coherent light and demonstrate high-quality imaging only in the forward direction (A-> ...
Guangdong Ma   +10 more
openaire   +3 more sources

Research Progress on the Twisted Partially Coherent Beams

open access: yesNantong 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

open access: yesScientific 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

High sensitivity optical coherence detector optimization [PDF]

open access: yes, 2001
An optimal optical filtering scheme for an optical coherence detection system gives very high detection sensitivities (-30dB) for a partially coherent source.
Coutinho, R.C.   +7 more
core   +1 more source

Partially coherent stable and spiral beams [PDF]

open access: yes, 2013
© 2013 Optical Society of America. The Spanish Ministerio de Economía y Competitividad is acknowledged for the financial support of the project through Grant No.
Alieva Krasheninnikova, Tatiana   +3 more
core   +1 more source

Partially coherent UV–VIS light generation in photonic crystal fiber using femtosecond pulses

open access: yesResults 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

Programmable on-chip synthesis and reconstruction of partially coherent two-mode optical fields [PDF]

open access: yesAPL Photonics
Partially coherent light is typically studied in the context of freely propagating continuous fields. Recent developments have indicated the existence of a “coherence advantage” in multimode optical communications, where partially coherent light ...
Amin Hashemi   +4 more
doaj   +1 more source

Propagation of partially coherent radiation using Wigner functions

open access: yesPhysical 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

Topological protection of partially coherent light [PDF]

open access: yesPhotonics 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

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