Results 91 to 100 of about 12,678 (263)
Advanced Science, EarlyView.This work provides a multifunctional programmable transmissive metasurface with phase and amplitude manipulation capability in the sub‐6G band. By applying different coding strategies, the proposed metasurface can realize vortex beam generation, holographic imaging under phase coding mode, and multi‐beam forming in phase‐amplitude joint coding mode ...
Hao Tian Shi +8 more
wiley +1 more source
Scale-invariant 3D face recognition using computer-generated holograms and the Mellin transform
Opto-Electronic AdvancesWe present a novel method for scale-invariant 3D face recognition by integrating computer-generated holography with the Mellin transform. This approach leverages the scale-invariance property of the Mellin transform to address challenges related to ...
Yongwei Yao +5 more
doaj +1 more source
Computer generated holography with intensity-graded patterns
Frontiers in Cellular Neuroscience, 2016 Computer Generated Holography achieves patterned illumination at the sample plane through phase modulation of the laser beam at the objective back aperture. This is obtained by using liquid crystal-based spatial light modulators (LC-SLMs), which modulate
Rossella Conti +4 more
doaj +1 more source
Multifacet holographic optical elements [PDF]
New types of holographic optical elements, combining the flexibility of computer generated holograms with the large space bandwidth product and high diffraction efficiency of interferometrically recorded volume phase holograms, are demonstrated.
Case, S. K., Haugen, P. R.
core +1 more source
Advanced Science, EarlyView.Biomimetic membrane interface engineering constructs functionalized detection platforms by integrating natural cell membranes, synthetic lipids, or hybrid membranes. This strategy effectively reduces background interference and enables efficient target capture and analysis, showing broad applications in circulating tumor cell separation, extracellular ...
Duo Liu +8 more
wiley +1 more source
Polarization‐Dependent 3D Holography Generated by Inverse Design Nanoprinting Metasurface
Advanced Science, EarlyView.A novel polarization‐dependent 3D holography is proposed by introducing polarization as an additional freedom, enabling enhanced depth selectivity and greater control over holographic reconstruction. The efforts perfectly combine the polarization and 3D holography display into ADAM gradient descent algorithm, the application of nanoprinting further ...
Lingxing Xiong +7 more
wiley +1 more source
Far-field and Fresnel Liquid Crystal Geometric Phase Holograms via Direct-Write Photo-Alignment
Crystals, 2017 We study computer-generated geometric-phase holograms (GPHs) realized by photo-aligned liquid crystals, in both simulation and experiment. We demonstrate both far-field and Fresnel holograms capable of producing far-field and near-field images with ...
Xiao Xiang +2 more
doaj +1 more source
Optical Encryption Based on Computer Generated Holograms in Photopolymer. [PDF]
Polymers (Basel), 2021 Wu T, Ma J, Wang C, Wang H, Cao L, Su P.
europepmc +1 more source
Random phase-free computer-generated hologram
Optics Express, 2015 Addition of random phase to the object light is required in computer-generated holograms (CGHs) to widely diffuse the object light and to avoid its concentration on the CGH; however, this addition causes considerable speckle noise in the reconstructed image.
Shimobaba, Tomoyoshi, Ito, Tomoyoshi
openaire +3 more sources
Scrambling‐Enhanced Quantum Battery Charging in Black Hole Analogues
Advanced Science, EarlyView.By employing a black‐hole‐analog quantum battery constructed from a position‐dependent XY model, its dynamical behavior is investigated through a quench of the scrambling parameter. It is systematically quantified that how the simulated scrambling improves key performance metrics‐namely, stored energy, peak power, and charging time‐thereby offering a ...
Zhilong Liu +3 more
wiley +1 more source