Results 61 to 70 of about 76,589 (319)
Surface plasmon wave plates [PDF]
Applied Physics Letters, 2015 Here, we investigate both numerically and experimentally, the polarization conversion capabilities of a rectangular array of holes with two unequal orthogonal periodicities. We show that it is possible to tune the periodicities in such a way that the transmitted light is circularly polarized for a nominated wavelength, λCPL, when the structure is ...
Amir Djalalian-Assl +4 more
openaire +3 more sources
, 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.
core +1 more source
Double Helical Plasmonic Antennas
Advanced Functional Materials, EarlyView.Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin +7 more
wiley +1 more source
Characteristic energy loss of electrons in Mg with angle resolution
Physics of Complex Systems, 2020 The article discusses electron energy loss of bulk and surface plasmons in solid polycrystalline Mg films. The experimental study of the electrons’ characteristic energy loss is conducted and its results are compared in a wide range of electron incidence
Иосиф Исаакович Хинич +1 more
doaj +1 more source
Solar energy converter using surface plasma waves [PDF]
, 1984 Sunlight is dispersed over a diffraction grating formed on the surface of a conducting film on a substrate. The angular dispersion controls the effective grating period so that a matching spectrum of surface plasmons is excited for parallel processing on
Anderson, L. M.
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Surface Plasmons and Topological Insulators
, 2011 We study surface plasmons localized on interfaces between topologically trivial and topologically non-trivial time reversal invariant materials in three dimensions.
A. Otto, Andreas Karch, E. Kretschmann
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Advanced Functional Materials, EarlyView.This work presents self‐propelled CRISPR/Cas9‐functionalized Au–MRs for rapid, amplification‐free, “on‐the‐fly” DNA detection. By harnessing motion‐assisted signal recovery, the platform achieved the limit of detection in low fM DNA concentrations, enabling detection across a wide dynamic range within only 5 min, which is significantly faster than any ...
Jyoti +3 more
wiley +1 more source
Path entanglement of surface plasmons
New Journal of Physics, 2015 Metals can sustain traveling electromagnetic waves at their surfaces supported by the collective oscillations of their free electrons in unison. Remarkably, classical electromagnetism captures the essential physics of these ‘surface plasma’ waves using ...
James S Fakonas +2 more
doaj +1 more source
Nonlinear Optical Microscopy and Plasmon Enhancement
Nanomaterials, 2022 Improving nonlinear optics efficiency is currently one of the hotspots in modern optical research. Moreover, with the maturity of nonlinear optical microscope systems, more and more biology, materials, medicine, and other related disciplines have higher ...
Yi Cao +4 more
doaj +1 more source
Selective excitation of plasmons superlocalized at sharp perturbations of metal nanoparticles
, 2015 Sharp metal corners and tips support plasmons localized on the scale of the curvature radius -- superlocalized plasmons. We analyze plasmonic properties of nanoparticles with small and sharp corner- and tip-shaped surface perturbations in terms of ...
Gorkunov, M. V. +2 more
core +1 more source