Results 21 to 30 of about 38,080 (271)
Sub-Terahertz Computer Generated Hologram with Two Image Planes
Applied Sciences, 2019 An advanced optical structure such as a synthetic hologram (also called a computer-generated hologram) is designed for sub-terahertz radiation. The detailed design process is carried out using the ping-pong method, which is based on the modified ...
Mateusz Surma +3 more
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Generation of Hybrid Optical Trap Array by Holographic Optical Tweezers
Frontiers in Physics, 2021 Enabled by multiple optical traps, holographic optical tweezers can manipulate multiple particles in parallel flexibly. Spatial light modulators are widely used in holographic optical tweezers, in which Gaussian point (GP) trap arrays or special mode ...
Xing Li +12 more
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Simultaneous reconstruction of phase and amplitude contrast from a single holographic record [PDF]
, 2009 We present a reconstruction technique for simultaneous retrieval of absorption and phase shifting properties of an object recorded by in-line holography.
Barton +17 more
core +1 more source
Monochrome Image Hologram (MIH)
مجلة بغداد للعلوم, 2008 A new computer-generated optical element called a monochrome image hologram (MIH) is described. A real nonnegative function to represent the transmittance of a synthesized hologram is used.
Baghdad Science Journal
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Practical Method to Screen Contaminated Holograms of Flocs Using Light Intensity
Frontiers in Marine Science, 2021 Submergible digital holographic camera can measure the in situ size and shape of suspended particles, such as complex flocs and biological organisms, without disturbance.
Sun Min Choi +4 more
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Spectral response of fixed photorefractive grating interference filters [PDF]
, 1994 We report a theoretical investigation of the frequency response of optical interference filters written in photorefractive materials. Counterpropagating coherent beams interact in the volume of a photorefractive crystal through two-beam coupling.
Hofmeister, Rudolf +2 more
core +1 more source
Waveguide holograms: A new approach to hologram integration
Optics Communications, 1976 Abstract A new class of holography is proposed, in which (1) the evanescent part of a guided wave, or (2) the guided wave in a thin-film hologram is utilized as the reference wave and/or the illuminating one. The hologram was designated as “wave-guide hologram” and has advantages in the possibility of integration, wide field of view, and compactness ...
Toshiaki SUHARA +2 more
openaire +2 more sources
2022 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), 2022 UK Research & Innovation (UKRI); Engineering & Physical Sciences Research Council (EPSRC); Royal Society of ...
David R. Walton +8 more
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Generation of Binary Off-axis Digital Fresnel Hologram with Enhanced Quality
ICT Express, 2015 The emergence of high resolution printer and digital micromirror device (DMD) has enabled real, off-axis holograms to be printed, or projected onto a screen.
Peter Wai Ming Tsang
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A digital hologram-based encryption and compression method for 3D models
Frontiers in Physics, 2022 This study proposes a novel method to compress and decompress the 3D models for safe transmission and storage. The 3D models are first extracted to become 3D point clouds, which would be classified by the K-means algorithm.
Yukai Sun +7 more
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