Results 41 to 50 of about 50,973 (273)
Undamped plasmon modes and enhanced superconductivity in metal diborides
New Journal of Physics, 2021 The anisotropic geometric and electronic structures of metal diborides ( M B _2 ) leads to many unusual optical and electronic properties. Here, we present a first-principles study on the low-energy collective electronic excitations and the ...
Han Gao +5 more
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Plasmon dispersion in semimetallic armchair graphene nanoribbons
, 2012 The dispersion relations for plasmons in intrinsic and extrinsic semimetallic armchair graphene nanoribbons (acGNR) are calculated in the random phase approximation using the orthogonal p_z-orbital tight binding method.
David R. Andersen, Hassan Raza, R. Saito
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Chiral plasmons without magnetic field [PDF]
, 2016 Plasmons, the collective oscillations of interacting electrons, possess emergent properties that dramatically alter the optical response of metals. We predict the existence of a new class of plasmons -- chiral Berry plasmons (CBPs) -- for a wide range of
Rudner, Mark S., Song, Justin C. W.
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Digital Plasmonic Holography [PDF]
Imaging 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
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New Journal of Physics, 2021 In this paper, plasmonic responses of phosphorene in the presence of strain and doping have been systematically investigated. Based on density functional theory, permittivities include both the intraband and interband transitions of electrons have been ...
Y Zhou +5 more
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Results in Physics, 2021 Anisotropic borophene surface plasmons with extraordinary features have triggered considerable research interest since its discovery. However, due to the atomically thin thickness of monolayer borophene, it is difficult to achieve borophene surface ...
Jun Zhang +5 more
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, 2018 We demonstrate via three examples that topological insulators (TI) offer a new platform for plasmonics. First, we show that the collective excitations of a thin slab of a TI display spin-charge separation.
Brey, L., Gómez-Santos, G., Stauber, T.
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, 2009 Surface plasmon polaritons (SPP)-based subwavelength metallic structures for laser amplification, emission, and collimation were introduced in this chapter. The plasmonic structures here act as a type of microlens which is integrated together with the laser for beam shaping or collimation.
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Emergent scale invariance of non-classical plasmons in graphene nanoribbons [PDF]
, 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
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Light‐Controlled Reversible Coassembly of Hybrid Functional Nanostructures
Advanced Functional Materials, EarlyView.Light‐responsive hybrid nanostructures are formed by coassembling azobenzene‐ and PAH‐functionalized nanoparticles through reversible an tunable π interactions. The system enables tunable coupling between distinct components such as gold and magnetite or carbon nanotubes, producing switchable optical and magnetic properties under light and magnetic ...
Michal Sawczyk +5 more
wiley +1 more source