Results 61 to 70 of about 173,282 (180)

Planar Super‐Oscillation Diffractive Lenses: Practical Developments and Applications

open access: yesNanophotonics, Volume 15, Issue 16, 26 August 2026.
This review examines planar super‐oscillation diffractive lenses as a unified framework for super‐oscillatory lenses and supercritical lenses. It focuses on applications in super‐resolution imaging, micro/nanofabrication, and precision measurement and relates their application‐specific requirements to focal‐field control, multiobjective design ...
Yutian Cheng   +6 more
wiley   +1 more source

The Fresnel triprism and the circular polarization of light

open access: yes, 2019
In 1822 Augustin Fresnel discovered the circular polarization of light with an experiment in which a plane polarized beam was resolved into its left- and right- circularly polarized components after refraction at slightly different angles at the ...
Razvigor Ossikovski   +2 more
core   +1 more source

Stereo Evaluation Of ALOS PRISM And IKONOS In Yemen [PDF]

open access: yes, 2009
DLR's Remote Sensing Technology Institute has a long lasting experience in developing spaceborne stereo scanners (MEOSS, MOMS) and the corresponding photogrammetric software systems for stereo evaluation and orthorectification.
Schneider, Mathias   +9 more
core   +1 more source

A clinical case report of left homonymous hemianopia

open access: yesAfrican Vision and Eye Health
Introduction: Homonymous hemianopia (HH), which refers to defects in the same half of the visual field in each eye, results from lesions that are posterior to the optic chiasm.
Nishanee Rampersad   +3 more
doaj   +1 more source

Compact Snapshot Hyperspectral Imaging With Neural Dispersion‐Engineered Metalens

open access: yesNanophotonics, Volume 15, Issue 15, 13 August 2026.
A dispersion‐engineered metalens, designed via an end‐to‐end deep learning framework, encodes spectral information through wavelength‐dependent PSF shifts. Fabricated by two‐photon grayscale lithography, the ultrathin device demonstrates outstanding spatial‐spectral reconstruction in both indoor and outdoor scenes, positioning it as a promising ...
Peng Liu, Jiaru Chu, Yuhang Chen
wiley   +1 more source

Generalized prism-array lenses for hard X-rays

open access: yes, 2005
A Fresnel-like X-ray lens can be constructed by a triangular array of identical prisms whose base corresponds to the 2 pi-shift length. Each column of prisms is progressively shifted from the optical axis by an arbitrary fraction of the prism height ...
Cederström, Björn,   +2 more
core   +1 more source

Random Prism: An Alternative to Random Forests. [PDF]

open access: yes, 2011
Ensemble learning techniques generate multiple classifiers, so called base classifiers, whose combined classification results are used in order to increase the overall classification accuracy.
Frederic Stahl   +5 more
core   +1 more source

PRISM

open access: yes, 2019
This is v1.1.0 of the PRISM package, hosted at https://github.com/1313e/PRISM PRISM is a pure Python 3 package that provides an alternative method to MCMC for analyzing scientific models.
van der Velden, Ellert (6381476)   +1 more
core   +1 more source

Determination of the topological charge of a twisted beam with a Fresnel bi-prism [PDF]

open access: yes, 2014
International audienceThe self-interference pattern of a Laguerre Gaussian beam using a Fresnel bi-prism is shown to be very different from what could be expected from a usual laser beam.
Brousseau, Christian   +2 more
core   +1 more source

Modeling of a BK7 prism/Ag/Ni/ZnSe/SM-based sensor for maintaining optimum performance in glucose level detection

open access: yesBiosensors and Bioelectronics: X
Patients suffering from diabetes, or having problems regarding up-downs in glucose levels may need to prick human skin to draw blood samples for checkups. Due to the enhancement of photonics, surface plasmon resonance (SPR) is a relief to them. As of now,
Kazi Mustafizur Rahman
doaj   +1 more source

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