Results 31 to 40 of about 5,651,449 (268)
Frontiers in Physics, 2022 Conventional studies on digital hologram printer have mainly been conducted on image generation and reconstruction such as multi-view image generation method, computer-generated hologram (CGH) and a method of displaying a wave-front for a 3D object ...
Leehwan Hwang +6 more
doaj +1 more source
Use of Computer-Generated Holograms in Security Hologram Applications [PDF]
Latvian Journal of Physics and Technical Sciences, 2016 Abstract The article discusses the use of computer-generated holograms (CGHs) for the application as one of the security features in the relief-phase protective holograms. An improved method of calculating CGHs is presented, based on ray-tracing approach in the case of interference of parallel rays.
Bulanovs, A. +2 more
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, 2023 We study a computer-generated waveguide hologram scattering problem. An artificial current density function with Gaussian profile is defined on a source plane that is close to the scatterers.
Sun, Ligang +7 more
core +1 more source
Applied Sciences, 2021 Computer-generated hologram (CGH) null correctors are used as accuracy standards for interferometric measurements of optical surfaces and optical systems.
Yingying Bai +5 more
doaj +1 more source
IEEE Access, 2021 We demonstrate an interactive holographic display system for real-time drawing and erasing of 3D point-cloud images. This system detects the position of the observer's fingertip with a motion sensor, which it uses to calculate the complex amplitude ...
Mikito Takenaka +3 more
doaj +1 more source
Computer-generated holograms [PDF]
Photoniques, 2017 Diffractive optical elements (DOEs) have many advantages over conventional ones. For a start, they are generally lighter, take up less room, and have a wider variety of properties. They can also be used to fabricate hybrid elements that modify polarization, compensate for dispersion, and so on.
openaire +1 more source
Design of a computer-generated waveguide hologram for integrated free space sensing
, 2021 In this work we present a design of a computer-generated waveguide hologram coupler with an ultra-long working distance and wavelength multiplexing in the near infrared.
Tianran Liu +5 more
core +1 more source
Zero order suppression on computer generated hologram produced by different spatial light modulators [PDF]
, 2013 textThe problem of zero order diffraction (ZOD) in the computer generated hologram (CGH) is a commonly reported issue in employing computer generated hologram (CGH) systems.
Wu, Sih-Ying
core
Advanced Materials, EarlyView.Cross‐sectional Lorentz TEM and off‐axis electron holography visualize the magnetic domain structure and quantify interlayer coupling in Fe3GeTe2/graphite/Fe3GeTe2 heterostructures. A stray‐field coupling length of 37±$\pm$7 nm marks the onset of domain misalignment between the layers.
Joachim Dahl Thomsen +6 more
wiley +1 more source
Formation of edge dislocation by the computer generated hologram
, 2015 The possibility of formation of the beam with edge dislocation, which is similar to the Crossed D = D sign•01(10) beam is considered. It is shown that such mode may be obtained due to the diffraction of Gaussian beam on the special binary computer ...
Kharitonova, Ye +12 more
core +1 more source