Results 111 to 120 of about 3,087,724 (237)

Resolution improvement methods applied to digital holography [PDF]

open access: yes
This thesis discusses the creation, acquisition and processing of digital holograms. Several techniques to improve the optical resolution have been investigated and developed.
Claus, Daniel
core  

In operando imaging of the space‐charge region in a 4H‐SiC MOSCAP using STEM‐EBIC

open access: yesJournal of Microscopy, EarlyView.
Abstract In situ biasing electron microscopy is the necessary step forward in being able to characterise nanoscale devices and device interfaces. STEM‐EBIC is a new approach that can help fill the missing gaps in creating reproducible methodologies for in situ biasing TEM.
Eoin Moynihan   +5 more
wiley   +1 more source

Circular crating optical scanning holography

open access: yes, 2000
The principle of optical scanning holography with circular gratings (CG) as the scanning field is presented. The generation and reconstruction processes of the scanning holography are described. These processes are numerical simulated by computer and the
Liu SY   +4 more
core  

Space–Bandwidth Product Extension for Holographic Displays Through Cascaded Wavefront Modulation

open access: yesApplied Sciences
The immersive experience of holographic displays is fundamentally limited by their space–bandwidth product (SBP), which imposes an inherent trade-off between the field of view (FOV) and eyebox size.
Shenao Zhang   +6 more
doaj   +1 more source

Free‐Standing Bilayer Metasurface With Physically Separated Phase Modulations for Low‐Crosstalk Polarization Multiplexing

open access: yesNanophotonics, Volume 15, Issue 22, 25 November 2026.
This paper presents a free‐standing bilayer spin‐decoupled metasurfaces that achieves almost complete decoupling of two circular polarization channels by physically separating the geometric phase and propagation phase modulations into distinct layers.
Bowen Niu   +6 more
wiley   +1 more source

Computer generated display holography: technical report no. DCSE/TR-2016-03

open access: yes, 2016
This text summarizes my work in the field of computer generated display holography. It tries to explain what motivated me to explore certain aspects of its fundamental principles and briefly explains the results. The reader interested in details finds
Lobaz, Petr
core  

Multitask Diffractive Deep Neural Networks Enabled by Joint Distance–Frequency Encoding

open access: yesNanophotonics, Volume 15, Issue 21, 12 November 2026.
A joint distance–frequency encoding strategy enables a single passive diffractive neural network to switch among four computational tasks. By combining mechanically tunable layer spacing with a dual‐frequency phase‐independent metasurface, the same hardware performs orbital angular momentum classification, direction recognition, logic operations, and ...
Zhengxuan Jiang   +5 more
wiley   +1 more source

Holography: art with light [PDF]

open access: yes, 2015
“It’s the intersection of art, science, and technology that makes holography so interesting,” stated Stephen Benton (1941-2003), a key figure in the development of modern holography not only on account of his scientific achievements (such as the ...
Beléndez, Augusto
core   +1 more source

Noise Impact Analysis in Computer-Generated Holography Based on Dual Metrics Evaluation via Peak Signal-to-Noise Ratio and Structural Similarity Index Measure

open access: yesApplied Sciences
This study investigates the noise impact on reconstructed images in computer-generated holography (CGH) through theoretical analysis and Matlab 2015b simulations.
Yucheng Li   +4 more
doaj   +1 more source

Current‐Driven Chirality Detection of Magnetic Textures in Cylindrical Nanowires

open access: yesAdvanced Functional Materials, Volume 36, Issue 91, 12 November 2026.
Current‐assisted anisotropic magnetoresistance measurements in individual Ni/Au cylindrical nanowires enable detection of vortex chirality near Au segments and selective magnetic reversal in defined wire sections at magnetic fields lower than the propagation field. This approach provides a simple, cost‐effective, and non‐invasive method for probing and
Javier Rial   +6 more
wiley   +1 more source

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