Results 51 to 60 of about 2,949 (207)
Advanced Science, EarlyView.This work demonstrates a receiver‐transmitter‐integrated metasurface that decomposes an incident wave into orthogonal components and routes them into separate channels. Inspired by a “Wheel‐of‐Fortune” mechanism, it enables independent control over the amplitude, phase, and polarization of the transmitted wave.
Tong Liu +8 more
wiley +1 more source
Representation and matching of knowledge to design digital systems [PDF]
, 1988 A knowledge-based expert system is described that provides an approach to solve a problem requiring an expert with considerable domain expertise and facts about available digital hardware building blocks.
Jones, J. U., Shiva, S. G.
core +1 more source
Cryogenic Volume-Phase Holograpic Grisms for MOIRCS
, 2011 We have developed high dispersion VPH (volume phase holographic) grisms with zinc selenide (ZnSe) prisms for the cryogenic optical system of MOIRCS (Multi-Object near InfraRed Camera and Spectrograph) for Y-, J-, H- and K- band observations.
Ebizuka, Noboru +14 more
core +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
Precise multimodal optical control of neural ensemble activity. [PDF]
, 2018 Understanding brain function requires technologies that can control the activity of large populations of neurons with high fidelity in space and time. We developed a multiphoton holographic approach to activate or suppress the activity of ensembles of ...
Adesnik, Hillel +8 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
Contact-line pinning controls how quickly colloidal particles equilibrate with liquid interfaces
, 2016 Previous experiments have shown that spherical colloidal particles relax to equilibrium slowly after they adsorb to a liquid-liquid interface, despite the large interfacial energy gradient driving the adsorption. The slow relaxation has been explained in
Kaz, David M. +3 more
core +1 more source
Aperture scanning Fourier ptychographic microscopy [PDF]
, 2016 Fourier ptychographic microscopy (FPM) is implemented through aperture scanning by an LCOS spatial light modulator at the back focal plane of the objective lens.
Chung, Jaebum +3 more
core +1 more source
Brain Health, EarlyView.ABSTRACT Neurological disorders represent a critical domain within global health, necessitating advanced interventions to address complex pathologies such as tumors, functional disorders, and cerebrovascular diseases. Despite the proven benefits of early intervention, current treatment paradigms face significant challenges: (1) limited precision in ...
Qing Ye +14 more
wiley +1 more source
Characterizing and tracking single colloidal particles with video holographic microscopy
, 2007 We use digital holographic microscopy and Mie scattering theory to simultaneously characterize and track individual colloidal particles. Each holographic snapshot provides enough information to measure a colloidal sphere's radius and refractive index to ...
Grier, David G. +7 more
core +1 more source