Results 1 to 10 of about 13,719,025 (270)
Some of the next articles are maybe not open access.

Near field scatterfng

2003 Conference on Lasers and Electro-Optics Europe (CLEO/Europe 2003) (IEEE Cat. No.03TH8666), 2004
We present a series of novel, unconventional optical techniques that are capable of performing measurements of low and ultra-low angle scattered light, and are therefore of potential interest for colloid physics and complex fluids in general. These techniques determine the angular intensity distribution through a spatial frequency spectral analysis of ...
M. Giglio   +3 more
openaire   +1 more source

Near-Field Diffraction Tomography

Ultrasonic Imaging, 2002
We propose an algorithm that deals with broadband ultrasonic signals acquired in the near-field domain using probes close to the skin. This technique is designed for diffraction tomography of compact support objects interrogated by spherical waves (small transducers).
Mensah, Serge, Ferrière, Robert
openaire   +3 more sources

Enabling More Users to Benefit From Near-Field Communications: From Linear to Circular Array

IEEE Transactions on Wireless Communications, 2022
Massive multiple-input multiple-output (MIMO) for 5G is evolving into the extremely large-scale antenna array (ELAA) to increase the spectrum efficiency by orders of magnitude for 6G communications.
Zidong Wu, Mingyao Cui, Linglong Dai
semanticscholar   +1 more source

Near-Field Electrospinning: Crucial Parameters, Challenges, and Applications.

ACS Applied Bio Materials, 2022
Near-field electrospinning (NFES) is a micro- or nanofiber production technology based on jetting molten polymer or polymer solution. Thanks to the programmable collector and nozzle movement, it can generate designed patterns in the presence of an ...
M. M. Nazemi   +2 more
semanticscholar   +1 more source

Near field communication

IEEE Pervasive Computing, 2011
For many years, pervasive computing research has explored the potential benefits of creating a connection between the virtual world of the Internet, and the physical world we live in. The Near Field Communication (NFC) standard might, at last, be the technology that makes this vision-sometimes referred to as the Internet of things-a ubiquitous reality.
openaire   +1 more source

Near-Field Communications: Research Advances, Potential, and Challenges

IEEE wireless communications
To support high throughput and massive connectivity, next-generation mobile networks are expected to utilize extremely large-scale antenna arrays. This would result in wireless communications occurring in the near-field region.
Jiancheng An   +5 more
semanticscholar   +1 more source

An Optically Transparent Near-Field Focusing Metasurface

IEEE transactions on microwave theory and techniques, 2021
We propose a novel optically transparent reflection-type metasurface based on indium tin oxide (ITO) material for simultaneously achieving high transmission of visible light and near-field focusing (NNF) of microwave, demonstrating its potential for ...
Long Li   +4 more
semanticscholar   +1 more source

THE NEAR FIELD TO FAR FIELD TRANSFORMATION

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 1995
If a scattering problem is solved by finite element, finite volume or finite difference methods, it is necessary to predict the far field pattern (or radar cross‐section) by using a near field to far field transformation. Usually this is done using the Stratton‐Chu integral relations, which give the far field pattern in terms of a near field surface ...
openaire   +1 more source

Polariscopy with optical near-fields

Nanoscale Horizons, 2022
Polarisation analysis of light–matter interactions established for propagating optical far-fields is now extended into an evanescent field as demonstrated in this study using an attenuated total reflection (ATR) setup and a synchrotron source at THz frequencies.
Ryu Meguya   +9 more
openaire   +3 more sources

Near field representation by far-field samples

1983 Antennas and Propagation Society International Symposium, 2005
The pseudo sampling technique is applied in an efficient near-field ...
G. D’Elia   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy