Results 31 to 40 of about 16,303 (201)

Single-Photon Sources Based on Novel Color Centers in Silicon Carbide P–I–N Diodes: Combining Theory and Experiment

open access: yesNano-Micro Letters, 2021
Highlights Theory of electrically driven single-photon sources based on color centers in silicon carbide p–i–n diodes. New method of determining the electron and hole capture cross sections by an optically active point defect (color center) from the ...
Igor A. Khramtsov, Dmitry Yu. Fedyanin
doaj   +1 more source

Research Progress of Plasmonic Nanostructure-Enhanced Photovoltaic Solar Cells

open access: yesNanomaterials, 2022
Enhancement of the electromagnetic properties of metallic nanostructures constitute an extensive research field related to plasmonics. The latter term is derived from plasmons, which are quanta corresponding to longitudinal waves that are propagating in ...
Adnan Ali   +3 more
doaj   +1 more source

Design and Analysis of a W-Band Metasurface-Based Computational Imaging System

open access: yesIEEE Access, 2017
We design and numerically analyze a coherent computational imaging system that utilizes a sparse detector array of planar, frequency-diverse, metasurface antennas designed to operate over the W-band frequency range (75-110 GHz).
Tomas Zvolensky   +3 more
doaj   +1 more source

Generating Information-Diverse Microwave Speckle Patterns Inside a Room at a Single Frequency With a Dynamic Metasurface Aperture

open access: yesIEEE Access, 2020
We demonstrate that dynamic metasurface apertures (DMAs) are capable of generating a multitude of highly uncorrelated speckle patterns in a typical residential environment at a single frequency.
Oren S. Mizrahi   +3 more
doaj   +1 more source

Plasmon Geometric Phase and Plasmon Hall Shift [PDF]

open access: yesPhysical Review X, 2018
The collective plasmonic modes of a metal comprise a pattern of charge density and tightly-bound electric fields that oscillate in lock-step to yield enhanced light-matter interaction. Here we show that metals with non-zero Hall conductivity host plasmons with a fine internal structure: they are characterized by a current density configuration that ...
Shi, Li-kun, Song, Justin Chien Wen
openaire   +4 more sources

Design and Simulation of a Frequency-Diverse Aperture for Imaging of Human-Scale Targets

open access: yesIEEE Access, 2016
We present the design and simulation of a frequency-diverse aperture for imaging of human-size targets at microwave wavelengths. Predominantly relying on a frequency sweep to produce diverse radiation patterns, the frequency-diverse aperture provides a ...
Okan Yurduseven   +4 more
doaj   +1 more source

Towards an optoelectronic characterization of molecules by nanoscale gold antennas [PDF]

open access: yes, 2014
Molecular electronics and plasmonics are both very promising fields in nanoscale sciences in which their combination is a big challenge. This thesis is divided into two parts.
Fröhlich, Toni
core   +1 more source

Plasmonics in Biology and Plasmon-Controlled Fluorescence [PDF]

open access: yesPlasmonics, 2006
Fluorescence technology is fully entrenched in all aspects of biological research. To a significant extent, future advances in biology and medicine depend on the advances in the capabilities of fluorescence measurements. As examples, the sensitivity of many clinical assays is limited by sample autofluorescence, single-molecule detection is limited by ...
openaire   +2 more sources

Plasmonic metamaterials [PDF]

open access: yesNanotechnology Reviews, 2013
Plasmonics and metamaterials have attracted considerable attention over the past decade, owing to the revolutionary impacts that they bring to both the fundamental physics and practical applications in multiple disciplines. Although the two fields initially advanced along their individual trajectories in parallel, they started to interfere with each ...
Yao Kan, Liu Yongmin
openaire   +3 more sources

Bright Silicon Carbide Single-Photon Emitting Diodes at Low Temperatures: Toward Quantum Photonics Applications

open access: yesNanomaterials, 2021
Color centers in silicon carbide have recently emerged as one of the most promising emitters for bright single-photon emitting diodes (SPEDs). It has been shown that, at room temperature, they can emit more than 109 photons per second under electrical ...
Igor A. Khramtsov, Dmitry Yu. Fedyanin
doaj   +1 more source

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