Results 61 to 70 of about 5,099,090 (216)
Advanced Science, EarlyView.Low‐dose electron holography is limited by shot noise, which buries weak phase signals. HoloDenoiser, a physics‐informed network that works simultaneously in the spatial and frequency domains, locates and protects the holographic sideband while suppressing noise in the hologram.
Ye Luo +10 more
wiley +1 more source
Advanced Micro Optics Characterization Using Computer Generated Holograms [PDF]
, 1998 This CRADA has enabled the validation of Computer Generated Holograms (CGH) testing for certain classes of micro optics. It has also identified certain issues that are significant when considering the use of CGHs in this application.
Moreshead, W. +3 more
core +1 more source
Computer Generated Holograms (CGH) for Testing, Alignment and Positioning of Astronomical and Space Mirrors Aspherical Surfaces [PDF]
EPJ Web of Conferences, 2019 JSC LZOS successfully applies Computer Generated Holograms (CGH) for testing of on- and off-axis surfaces of large-dimensioned optical components for their alignment with respect to interferometer, for defining of aspherical surface optical vertex ...
Semenov Aleksandr +7 more
doaj +1 more source
Advanced Science, EarlyView.A graphene‐metal hybrid transmissive metasurface enables electrically tunable mid‐infrared transmission modulation through ionic gel top gating. By combining graphene with a metallic slit metasurface, high modulation efficiency and broadband operation are achieved simultaneously, demonstrating efficient electrical control of mid‐infrared transmission ...
Heonhak Ha +4 more
wiley +1 more source
Spin and wavelength multiplexed nonlinear metasurface holography
Nature Communications, 2016 Metasurfaces offer an approach for computer generated holograms with good efficiency and ease of fabrication. Here, Ye et al.report on spin and wavelength multiplexed nonlinear metasurface holography, showing construction of holographic images using ...
Weimin Ye +9 more
doaj +1 more source
IEEE Access, 2019 Anti-counterfeit technology has attracted much attention with the development of economy, because many counterfeit products that are difficult for identification have been produced, which extremely damage the interests of consumers.
Jiahao Miao +3 more
doaj +1 more source
Passive Metasurface Tweezers for Multi‐Scale Orbital Transport and Trapping on Elastic Plates
Advanced Science, EarlyView.Passive labyrinthine phase encoding converts single‐channel excitation into localized flexural‐wave vortices with programmable orbital angular momentum. The resulting vortex fields enable cross‐scale particle manipulation, including orbital transport, central confinement, and rotational actuation.
Zeyang Bi +7 more
wiley +1 more source
Edge sharpness effects on computer-generated holograms [PDF]
, 1981 Computer-generated holograms refer to a class of holograms which are produced as a graphical output from a computer. This paper investigates the relation.
Potter, Clinton S.
core
Polarization Holographic 4D Phenotyping Reveals Nanoplastic Induced Dysfunction in Zooplankton
Advanced Science, EarlyView.Contaminant‐induced dysfunction in complex aquatic organisms remains difficult to resolve across scales. Polarization Holographic Imaging Microscopy (PHIM) integrates polarization‐sensitive holography with computational volumetric reconstruction for label‐free phenotyping of zooplankton in natural seawater, revealing that nanoplastic stress drives ...
Yuxing Li +8 more
wiley +1 more source
Coherent Optical Pattern Recognition Using Computer-Generated Holograms
, 1991 Coherent optical pattern recognition using computer-generated holograms A relatively inexpensive optical processing system is described which uses a TV camera to demonstrate visually many of the features of Fourier transform theory with particular ...
S. S. Ipson, K. F. Chang, W. Booth
core +1 more source