Results 91 to 100 of about 5,671,364 (222)

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  

Holography

open access: yes, 2011
This book depicts some differences from the typical scientific and technological literature on the theoretical study of holography and its applications.

core   +1 more source

Field-Transformation-Based Light-Field Hologram Generation from a Single RGB Image

open access: yesPhotonics
We propose a field-transformation-based framework for generating phase-only light-field holograms from a single RGB image. The method establishes an explicit pipeline from monocular scene inference to holographic wavefront synthesis, without requiring ...
Xiaoming Chen   +4 more
doaj   +1 more source

Compact Single‐Shot Incoherent Edge Detection With a Polarization‐Multiplexed Metalens

open access: yesLaser &Photonics Reviews, EarlyView.
A polarization‐sensitive metalens enables single‐shot incoherent edge detection by generating two polarization‐dependent images and digitally subtracting them to realize a high‐pass optical transfer function. ABSTRACT Edge detection under incoherent illumination is highly desirable for compact vision systems but remains challenging due to the lack of ...
Weiyan Li   +17 more
wiley   +1 more source

Nonlocal Leaky Mode Metasurfaces for Mode‐, Angle‐, and Polarization‐Multiplexed Holography With Thermal Light

open access: yesLaser &Photonics Reviews, EarlyView.
Nonlocal leaky mode metasurfaces reconstruct multiplexed holograms directly from unfiltered thermal light. High‐Q leaky guided modes compress broadband halogen emission into narrowband channels, enhancing temporal coherence a hundredfold, while a single nanohole array encodes independent images addressed by mode, angle, and polarization, establishing ...
Rajat Kumar Sinha, Mo Mojahedi
wiley   +1 more source

Holography: A survey [PDF]

open access: yes, 1973
The development of holography and the state of the art in recording and displaying information, microscopy, motion, pictures, and television applications are discussed.
Dudley, D. D.
core  

Weak Measurement for Characterizing Effective Jones Matrices of Phase Gradient Metasurfaces

open access: yesLaser &Photonics Reviews, EarlyView.
Spin dependent deflection from a PB phase gradient metasurface is converted by two dimensional weak measurement into a centroid map, where the amplitude ratio, phase difference, and phase gradient produce distinct spatial features. These effective parameters are then retrieved directly from the centroid response.
Peng Tang   +8 more
wiley   +1 more source

Scaling of Three-Dimensional Computer-Generated Holograms with Layer-Based Shifted Fresnel Diffraction

open access: yesApplied Sciences, 2019
Holographic three-dimensional (3D) displays can reconstruct a whole wavefront of a 3D scene and provide rich depth information for the human eyes. Computer-generated holographic techniques offer an efficient way for reconstructing holograms without ...
Hao Zhang, Liangcai Cao, Guofan Jin
doaj   +1 more source

Millimeter‐Scale Single‐Layer RGB Achromatic Metalens via Time‐Simultaneity‐Free Design

open access: yesLaser &Photonics Reviews, EarlyView.
This study proposes a time‐simultaneity‐free (TSF) approach that circumvents the size‐bandwidth trade‐off in multi‐wavelength metasurfaces. By strategically abandoning time‐simultaneity via wavelength‐dependent DC phase biases, a single‐layer, polarization‐insensitive RGB achromatic metalens is scaled to 1‐millimeter diameter.
Atsushi Hasegawa   +7 more
wiley   +1 more source

Misalignment‐Robust Dynamic Cascaded Holography Accelerated by Deep Neural Networks

open access: yesLaser &Photonics Reviews, EarlyView.
Cascaded holography has mainly been studied using metasurfaces. Here, we demonstrate a fully dynamic cascaded holographic system based on two phase‐only spatial light modulators. A misalignment‐tolerant optimization method preserves image quality despite alignment errors, making cascaded holographic systems simpler, more reliable, and easier to use in ...
Gyeongsu Jin   +2 more
wiley   +1 more source

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