Results 61 to 70 of about 50,688 (337)
Recent advances in metasurface hologram technologies (Invited paper)
ETRI Journal, 2019 Since Leith and Upatnieks demonstrated the first optical hologram in 1964, hologram technology has attracted a great deal of interest in a wide range of optical fields owing to its potential use in future optical applications such as holographic imaging ...
Gun-Yeal Lee +2 more
semanticscholar +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
openaire +2 more sources
New fully functioning digital hologram recording system and its applications [PDF]
, 2010 We propose a low-cost optical system that is able to simply generate computer-generated holograms and rainbow type and truecolor Lippmann type holograms.
JOSE JAVIER BAEZ ROJAS +2 more
core
Advanced Materials, EarlyView.A deep learning inverse‐design framework is established to create versatile reconfigurable terahertz metadevices. By synergizing deep learning with phase‐change materials, this approach enables on‐demand customization of multidimensional electromagnetic responses.
Yisheng Dong +11 more
wiley +1 more source
Jurnal Kajian Teknologi Pendidikan, 2019 Media Obyek 3 Dimensi Digital yang memanfatkan piramida hologram merupakan alat yang digunakan sebagai penyampai/berisikan informasi berupa bentuk digital.
Akhmad Arifudin +2 more
doaj +1 more source
Nanophotonics, 2023 Metalenses have potential to replace various bulky conventional optical elements with ultrathin nanostructure arrays. In particular, active metalenses with reconfigurable focusing capability have attracted considerable interest from the academic and ...
Jung Joonkyo, Kim Hyeonhee, Shin Jonghwa
doaj +1 more source
Acoustic Hologram Enhanced Phased Arrays for Ultrasonic Particle Manipulation
Physical Review Applied, 2019 By combining phased-array technology with recent developments in acoustic holograms, the authors enhance the capabilities of ultrasonic particle manipulation while reducing the cost. A 3D-printed hologram enables them to create high-fidelity force fields
L. Cox +4 more
semanticscholar +1 more source
Zero order synthetic hologram with a sinusoidal phase carrier for generation of multiple beams [PDF]
, 2009 We discuss a phase synthetic hologram, for encoding arbitrary complex fields, whose design is based on a sinusoidal phase grating with a spatially modulated phase depth.
VICTOR MANUEL ARRIZON PEÑA +2 more
core
Advanced Materials Technologies, EarlyView.One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee +7 more
wiley +1 more source