Results 131 to 140 of about 231,801 (304)
Advanced Science, EarlyView.Terahertz resonances in crystalline heterostructures could close a spectral gap between conventional electronics and photonics while opening new windows on non‐equilibrium lattice dynamics. Femtosecond optical screening of the depolarization field in epitaxial PbTiO3/SrTiO3 superlattices launches a collective polar mode that oscillates near 1 THz and ...
Deepankar Sri Gyan +13 more
wiley +1 more source
IET Networks, EarlyView., 2023 The topic discussed was the intelligent design of network multimedia using BD and virtual AI technology. First of all, the authors gave a brief overview of its relevant research background, and then comprehensively analysed the advantages and disadvantages of previous scholars' research on network multimedia.
Xin Zhang
wiley +1 more source
TechNews digests: Jan - Mar 2010 [PDF]
, 2010 TechNews is a technology, news and analysis service aimed at anyone in the education sector keen to stay informed about technology developments, trends and issues. TechNews focuses on emerging technologies and other technology news.
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Optics Express, 2019 In this paper, a two-path parallel scheme for m-QAM-OFDM transmission in optical wireless communications was proposed, and its principle was theoretically derived.
Lu Zhang +5 more
semanticscholar +1 more source
Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic‐Accessible Metasurface
Advanced Science, EarlyView.A fluidic access metasurface enables dynamic, broadband electromagnetic illusions. By physically reconstructing conductive patterns with liquid metal, the metasurface achieves real‐time, pixel‐level control over phase dispersion. This allows for the programmable generation of arbitrary strong scattering point arrays, effectively deceiving high ...
Shipeng Liu +14 more
wiley +1 more source
Indoor Optical Wireless Channel Characteristics With Distinct Source Radiation Patterns
IEEE Photonics Journal, 2016 In conventional indoor optical wireless communication, the transmitter is usually empirically viewed as a source with a Lambertian radiation pattern.
Jupeng Ding, Chih-Lin I, Zhengyuan Xu
doaj +1 more source
A Roadmap for Gigabit to Terabit Optical Wireless Communications Receivers. [PDF]
Sensors (Basel), 2023 Matthews W, Collins S.
europepmc +1 more source
Effect of Environmental Parameters on the Performance of Optical Wireless Communications
International Journal of Optics, 2019 Free space optical communication systems are the future of the communication systems which can meet the needs of the end users who are demanding high bandwidths to support high-speed communication.
H. Ali, Elnoubi Said, Mohamed Yousef
semanticscholar +1 more source
Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective
Advanced Electronic Materials, EarlyView.Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe +4 more
wiley +1 more source
IEEE Photonics JournalThis paper studies the constellation optimization approach for multiple-input multiple-output (MIMO) visible light communication (VLC) systems with signal-dependent noise (SDN).
Jiaqi Wei +6 more
doaj +1 more source