Results 41 to 50 of about 32,968 (189)

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

Gap and channelled plasmons in tapered grooves: a review [PDF]

open access: yes, 2015
Tapered metallic grooves have been shown to support plasmons -- electromagnetically coupled oscillations of free electrons at metal-dielectric interfaces -- across a variety of configurations and V-like profiles.
Bozhevolnyi, Sergey I.   +4 more
core   +4 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

Benchmarking the Use of Heavily-Doped Ge Against Noble Metals for Plasmonics and Sensing in the Mid-Infrared [PDF]

open access: yes, 2016
Despite the recent introduction of heavily-doped semiconductors for mid-infrared plasmonics, it still remains an open point whether such materials can compete with noble metals.
Baldassarre, Leonetta   +8 more
core   +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

Plasmon transport in graphene investigated by time-resolved measurement [PDF]

open access: yes, 2012
Plasmons, which are collective charge oscillations, offer the potential to use optical signals in nano-scale electric circuits. Recently, plasmonics using graphene have attracted interest, particularly because of the tunable plasmon frequency through the
Fujisawa, T.   +6 more
core   +2 more sources

Plasmonic biosensors [PDF]

open access: yesWIREs Nanomedicine and Nanobiotechnology, 2014
The unique optical properties of plasmon resonant nanostructures enable exploration of nanoscale environments using relatively simple optical characterization techniques. For this reason, the field of plasmonics continues to garner the attention of the biosensing community.
openaire   +2 more sources

Nonlinear acousto-magneto-plasmonics

open access: yes, 2016
We review the recent progress in experimental and theoretical research of interactions between the acoustic, magnetic and plasmonic transients in hybrid metal-ferromagnet multilayer structures excited by ultrashort laser pulses.
Makarov, Denys   +6 more
core   +1 more source

Emergent scale invariance of non-classical plasmons in graphene nanoribbons [PDF]

open access: yes, 2018
Using a nearest-neighbor tight-binding model we investigate quantum effects of plasmons on few-nanometer wide graphene nanoribbons, both for zigzag and armchair edge terminations.
Mortensen, N. Asger   +3 more
core   +3 more sources

Digital Plasmonic Holography [PDF]

open access: yesImaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP), 2018
AbstractWe demonstrate digital plasmonic holography for direct in-plane imaging with propagating surface-plasmon waves. Imaging with surface plasmons suffers from the lack of simple in-plane lenses and mirrors. Lens-less digital holography techniques, however, rely on digitally decoding an interference pattern between a reference wave and an object ...
Nelson, Joseph W.   +3 more
openaire   +3 more sources

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