Results 31 to 40 of about 1,179,176 (305)

Far-field subwavelength resolution imaging by spatial spectrum sampling [PDF]

open access: yes, 2019
Imaging below the diffraction limit is always a public interest because of the restricted resolution of conventional imaging systems. To beat the limit, evanescent harmonics decaying in space must participate in the imaging process.
Li-Zheng Yin (5445104)   +5 more
core   +1 more source

Far field from near field measurements. An approach to solve the inverse problem of electromagnetic radiation via genetic algorithms

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2012
In this paper the application of the Genetic Algorithms (GA) as a search method of a geometric configuration of elementary dipoles that solve the inverse problem of electromagnetic radiation are reported. The inverse problem of electromagnetic radiation
Arturo Rangel Merino   +2 more
doaj   +1 more source

Far-Field Super-resolution Detection of Plasmonic Near-Fields [PDF]

open access: yes, 2016
We demonstrate a far-field single molecule super-resolution method that maps plasmonic near-fields. The method is largely invariant to fluorescence quenching (arising from probe proximity to a metal), has reduced point-spread-function distortion compared
Robert Charles Boutelle (2937477)   +2 more
core   +1 more source

Nonreciprocal Electromagnetic Wave Manipulation via a Single Reflection

open access: yesAdvanced Photonics Research, 2023
Electromagnetic field manipulation plays a key role in applications such as electron acceleration, nonlinear light–matter interaction, and radiation engineering.
Lu Wang
doaj   +1 more source

Far- and Near-Field Heat Transfer in Transdimensional Plasmonic Film Systems [PDF]

open access: yes, 2022
We compare the confinement-induced nonlocal electromagnetic response model to the standard local Drude model routinely used in plasmonics. Both of them are applied to study the heat transfer for transdimensional plasmonic film systems.
Svend-Age Biehs (5261717)   +1 more
core   +1 more source

Far field condition in passive interferometry for security screening applications [PDF]

open access: yes, 2010
This work presents the main geometric constraints that affect the performance of a passive interferometer at 94 GHz for security screening applications by means of a reviewed definition of the Far Field condition in close range detection ...
Jofre Roca, Lluís   +4 more
core   +2 more sources

Illuminance and Starting Distance of the Far Field of LED-Array Luminaire Operated at Short Working Distance

open access: yesCrystals, 2020
A luminaire with a light-emitting diode (LED) array can provide hotspot illumination in a short range. Therefore, a design of a luminaire with the largest central illuminance (LCI) and a high uniformity is warranted.
Ching-Cherng Sun   +6 more
doaj   +1 more source

Far-Field Electrostatic Signatures of Macromolecular 3D Conformation. [PDF]

open access: yesNano Lett, 2022
In solution as in vacuum, the electrostatic field distribution in the vicinity of a charged object carries information on its three-dimensional geometry.
Kloes G   +5 more
europepmc   +3 more sources

Far-field sound radiation due to an installed open rotor [PDF]

open access: yes, 2012
Future single rotation propeller and contra-rotating advanced open rotor concepts promise a significant fuel efficiency advantage over current generation turbofan engines.
Kingan, Michael J., McAlpine, A.
core   +1 more source

Far-Field Speaker Recognition

open access: yes2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006
In this paper we study robust speaker recognition in far-field microphone situations such as meeting scenarios. By applying reverberation compensation and feature warping we achieved significant improvements under mismatched training-testing conditions. To capture useful information from multiple distant microphones, two approaches for multiple channel
Jin, Qin, Pan, Yue, Schultz, Tanja
openaire   +6 more sources

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