Results 81 to 90 of about 16,987 (218)
IEEE Photonics Journal, 2019 In the point-based method, the aliasing phenomenon in the hologram plane is usually considered as a harmful phenomenon because it will degrade the reconstructed image quality. In this paper, the advantage of the aliasing phenomenon is employed to improve
Chun Chen +4 more
doaj +1 more source
PEMBUATAN HOLOGRAM TRANSMISI [PDF]
, 2004 A transmission hologram of white ceramic as cat statue has been made on 5000 lines/mm Agfa Geveart. By recording of hologram, the average and optimal exposure time lies between 8 and 10 seconds, it is used He-Ne laser (l = 632.8 nm).
Rudyansyah, Amri +2 more
core +1 more source
Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source
Local zoom issue in holographic 3D display
JPhys PhotonicsIn near-eye displays such as AR/VR, users often utilize gesture recognition to selectively zoom into regions of interest for detailed observation of local scenes. If the scene is reconstructed from a hologram, zooming in on the scene requires scaling the
Fan Wang +7 more
doaj +1 more source
Advanced Electronic Materials, EarlyView.A compact resistively loaded metamaterial absorber captures RF energy at 2.4 GHz and directs most of the accepted power to modeled loads. The resonant response is confirmed experimentally for the fabricated absorber, while an impedance‐matched rectifier is evaluated through simulation. The stage‐wise results distinguish absorber, rectifier, and cascade
Md. Murad Kabir Nipun, Md. Jahedul Islam
wiley +1 more source
Advanced Electronic Materials, EarlyView.A compact passive engineered surface converts changes in microwave frequency into many distinct illumination patterns, allowing nearby objects to be imaged without mechanical scanning, active tuning, or a large antenna array. Operating from 18 to 28 GHz, the single‐port system uses measured field patterns to reconstruct metallic targets and distinguish
Mohammed H. Arif +6 more
wiley +1 more source
Spin-Switched Three-Dimensional Full-Color Scenes Based on a Dielectric Meta-hologram
, 2019 The possibility to manipulate light fields with metasurfaces can facilitate more compact and efficient devices for encoding computer-generated holograms.
Hang Feng +13 more
core +2 more sources
Physical Unclonable Functions From Microwave Metasurface Fingerprints
Advanced Electronic Materials, EarlyView.Nominally identical metasurfaces fabricated through standard PCB processes inevitably contain microscopic fabrication imperfections. This work demonstrates that these unavoidable electromagnetic deviations can serve as unique physical unclonable fingerprints for wireless authentication.
Guanxiong Shen +4 more
wiley +1 more source
, 2013 This paper describes the conceptual underpinning, theoretical context and workflow of a haptic drawing hologram project, Hyperobject: Homeland which proposes that one’s homeland is emergent as life experience.
Dawson, Paula
core
Advancing Energy Materials by In Situ Atomic Scale Methods
Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss +21 more
wiley +1 more source