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Research on nonlinear optical materials: an assessment. IV. Photorefractive and liquid crystal materials [PDF]

open access: yes, 1987
This panel considered two separate subject areas: photorefractive materials used for nonlinear optics and liquid crystal materials used in light valves.
Brody, P. S.   +8 more
core  

Towards integrated superconducting detectors on lithium niobate waveguides

open access: yes, 2017
Superconducting detectors are now well-established tools for low-light optics, and in particular quantum optics, boasting high-efficiency, fast response and low noise.
Bartley, Tim J.   +17 more
core   +1 more source

Nonradiating Photonics with Resonant Dielectric Nanostructures [PDF]

open access: yes, 2019
Nonradiating sources of energy have traditionally been studied in quantum mechanics and astrophysics, while receiving a very little attention in the photonics community.
Bogdanov, Andrey   +4 more
core   +2 more sources

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

Adaptive pixel attention network for hyperspectral image classification

open access: yesScientific Reports
Patch features obtained by fixed convolution kernel have become the main form in hyperspectral image (HSI) classification processing. However, the fixed convolution kernel limits the weight learning of channels, which results in the potential connections
Yuefeng Zhao   +5 more
doaj   +1 more source

Measurement of optical coherence structures of random optical fields using generalized Arago spot experiment

open access: yesOpto-Electronic Science, 2023
The optical coherence structures of random optical fields can determine beam propagation behavior, light–matter interactions, etc. Their performance makes a light beam robust against turbulence, scattering, and distortion.
Xin Liu   +4 more
doaj   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

Performance Analysis of Metalenses Based on Three Kinds of Phase Compensation Techniques

open access: yesNanomaterials, 2021
The phase delays introduced by anisotropic nanounits include propagation phase delay, resonant phase delay and geometric phase delay. Various phase devices can be formed based on the metasurfaces consisting of anisotropic nanounits and the phase devices ...
Peiyao Lu   +4 more
doaj   +1 more source

Optics: Leading lights [PDF]

open access: yesNature, 2015
Shape it, squeeze it, energize it or tie it into knots. Scientists are taking light to new extremes.
openaire   +1 more source

Optical rotation of white light [PDF]

open access: yesAmerican Journal of Physics, 2020
Plane-polarized monochromatic light is rotated in an optically active medium. The extent of the rotation is wavelength dependent, following an optical rotatory dispersion (ORD) curve. Typically, this phenomenon is studied by using a few discrete wavelengths. Here, we demonstrate optical rotation of white light. Corn syrup is used as the medium as large
Anderson, Jason   +4 more
openaire   +3 more sources

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