Introductory lecture: nanoplasmonics

Brongersma, Mark L.

doi:10.1039/c5fd90020d

Cited by 60 publications

(41 citation statements)

References 310 publications

(458 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plasmonics lies among the most prominent research fields in modern nanotechnology123, promising exciting applications and unravelling new phenomena as the length scale reduces456. Traditionally, noble metals constitute the material basis for novel plasmonic devices operating in the visible7, although many recent efforts are devoted to extensions towards the ultraviolet, infrared and THz parts of the spectrum8.…”

mentioning

confidence: 99%

Robustness of the far-field response of nonlocal plasmonic ensembles

Tserkezis

Maack

Liu

et al. 2016

Sci Rep

View full text Add to dashboard Cite

Contrary to classical predictions, the optical response of few-nm plasmonic particles depends on particle size due to effects such as nonlocality and electron spill-out. Ensembles of such nanoparticles are therefore expected to exhibit a nonclassical inhomogeneous spectral broadening due to size distribution. For a normal distribution of free-electron nanoparticles, and within the simple nonlocal hydrodynamic Drude model, both the nonlocal blueshift and the plasmon linewidth are shown to be considerably affected by ensemble averaging. Size-variance effects tend however to conceal nonlocality to a lesser extent when the homogeneous size-dependent broadening of individual nanoparticles is taken into account, either through a local size-dependent damping model or through the Generalized Nonlocal Optical Response theory. The role of ensemble averaging is further explored in realistic distributions of isolated or weakly-interacting noble-metal nanoparticles, as encountered in experiments, while an analytical expression to evaluate the importance of inhomogeneous broadening through measurable quantities is developed. Our findings are independent of the specific nonclassical theory used, thus providing important insight into a large range of experiments on nanoscale and quantum plasmonics.

show abstract

mentioning

confidence: 99%

Robustness of the far-field response of nonlocal plasmonic ensembles

Tserkezis

Maack

Liu

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Metal nanoparticles of a variety of different shapes and compositions have been investigated in recent years for plasmonic applications [1][2][3][4][5][6]. A material which stands out due to its strong response throughout the visible and near-infrared regions is Ag.…”

Section: Introductionmentioning

confidence: 99%

Higher Order Plasmonic Modes Excited in Ag Triangular Nanoplates by an Electron Beam

et al. 2015

View full text Add to dashboard Cite

Ag triangular nanoplates are known to generate strong plasmonic resonances when excited by both light and electron beams. Experimental electron energy-loss spectra (EELS) and maps were acquired using an aberration-corrected JEOL-ARM microscope. The corner, edge and centre modes that are often observed in such structures were also observed in these measurements. In addition, novel higher order internal modes were observed and were found to be well reproduced by theoretical cal-culations using boundary element method (BEM). These modes are "dark modes" so are not observed in the optical extinction spectra. They are confined surface propagating modes and are analogous to laser cavity modes AbstractAg triangular nanoplates are known to generate strong plasmonic resonances when excited by both light and electron beams. Experimental electron energy-loss spectra (EELS) and maps were acquired using an aberration corrected JEOL-ARM microscope. The corner, edge and centre modes that are often observed in such structures were also observed in these measurements. In addition, novel higher order internal modes were observed and were found to be well-reproduced by theoretical calculations using boundary element method (BEM). These modes are "dark modes" so are not observed in the optical extinction spectra. They are confined surface propagating modes and are analogous to laser cavity modes.Keywords silver nanoparticles, localized surface plasmon resonance, electron energy-loss spectroscopy (EELS), boundary element method (BEM) Acknowledgements

show abstract

“…Plasmonics [1,2], as a separate branch of nanophotonics, has recently attracted intensive attention driven by both emerging applications and maturing state-of-theart nanofabrication technology [3][4][5]. With strong interaction between light and free electrons, plasmonics allows * Special Topic: Frontiers of Plasmonics (Ed.…”

Section: Introductionmentioning

confidence: 99%

Graphene-plasmon polaritons: From fundamental properties to potential applications

et al. 2016

View full text Add to dashboard Cite

With unique possibilities for controlling light in nanoscale devices, graphene plasmonics has opened new perspectives to the nanophotonics community with potential applications in metamaterials, modulators, photodetectors, and sensors. In this paper, we briefly review the recent exciting progress in graphene plasmonics. We begin with a general description of the optical properties of graphene, particularly focusing on the dispersion of graphene-plasmon polaritons. The dispersion relation of graphene-plasmon polaritons of spatially extended graphene is expressed in terms of the local response limit with an intraband contribution. With this theoretical foundation of graphene-plasmon polaritons, we then discuss recent exciting progress, paying specific attention to the following topics: excitation of graphene plasmon polaritons, electron-phonon interactions in graphene on polar substrates, and tunable graphene plasmonics with applications in modulators and sensors. Finally, we address some of the apparent challenges and promising perspectives of graphene plasmonics.

show abstract

Introductory lecture: nanoplasmonics

Cited by 60 publications

References 310 publications

Robustness of the far-field response of nonlocal plasmonic ensembles

Robustness of the far-field response of nonlocal plasmonic ensembles

Higher Order Plasmonic Modes Excited in Ag Triangular Nanoplates by an Electron Beam

Graphene-plasmon polaritons: From fundamental properties to potential applications

Contact Info

Product

Resources

About