Transverse electric surface mode in atomically thin Boron–Nitride

Merano, Michele

doi:10.1364/ol.41.002668

Cited by 30 publications

(25 citation statements)

References 31 publications

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“…This surface plasmon has been obtained in [33], and experimentally confirmed based on analysis of existing data by Merano [37], as a proper mode propagating with its electric and magnetic fields decaying exponentially away from the plane graphene sheet in two adjacent regions.…”

Section: Resultssupporting

confidence: 56%

Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections

Cuevas

2018

Journal of Quantitative Spectroscopy and Radiative Transfer

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Abstract. We present a theoretical study of the spontaneous emission of a line dipole source embedded in a graphene-coated subwavelength wire of arbitrary shape. The modification of the emission and the radiation efficiencies are calculated by means of a rigorous electromagnetic method based on Green's second identity. Enhancement of these efficiencies is observed when the emission frequency coincides with one of the plasmonic resonance frequencies of the wire. The relevance of the dipole emitter position and the dipole moment orientation are evaluated. We present calculations of the near-field distribution for different frequencies which reveal the multipolar order of the plasmonic resonances.

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Section: Resultssupporting

confidence: 56%

Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections

Cuevas

2018

Journal of Quantitative Spectroscopy and Radiative Transfer

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“…The value of χ s for the monolayer has already been deduced in ref. [15]. The solid line is the best theoretical fit assuming χ s = 1.3 · 10 −9 m. The value of the surface conductivity was extimated to be σ ≤ 2 · 10 −6 Ω −1 , confirming that we are dealing with an insulating dielectric material.…”

Section: Analysis Of Optical Contrast Measurementsmentioning

confidence: 63%

“…Having both the χ s from the optical contrast measurements of the monolayer [15,20] and the χ for the bilayer, we can try to deduce the atomic polarizabilities. From the equations…”

Section: Atomic Polarizabilitiesmentioning

confidence: 99%

“…The optical response of a single-layer crystal provides direct access to its electronic properties via its macroscopic surface susceptibility and surface conductivity [12][13][14][15][16]. Recently a classical description of a 2D crystal connected these macroscopic quantities to microscopic atomic polarizability through the Clausius-Mossotti-Lorenz-Lorentz relations.…”

Section: Introductionmentioning

confidence: 99%

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Optical response of a bilayer crystal

Dell’Anna

Merano

2019

Phys. Rev. A

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We extend the recently developed classical theory for the optical response of a single-layer crystal to bilayers. We account for the interaction between the two atomic planes and the multiple reflections inside the crystals. We show how to define a global susceptibility meaningful for the bilayer crystal and how its expression varies compared to the single-layer case. We compute both the local and the macroscopic fields, which allow us to make a direct comparison with experimental data.

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“…For example, graphene-based photodetectors integrated on Si waveguides have been studied by S. Schuler et al [34]. The spatial confinement and the propagation length of surface waves in the graphene layer has also been studied [36].…”

Section: Introductionmentioning

confidence: 99%

Bloch Surface Waves Using Graphene Layers: An Approach toward In-Plane Photodetectors

et al. 2018

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A dielectric multilayer platform was investigated as a foundation for two-dimensional optics. In this paper, we present, to the best of our knowledge, the first experimental demonstration of absorption of Bloch surface waves in the presence of graphene layers. Graphene is initially grown on a Cu foil via Chemical Vapor Deposition and transferred layer by layer by a wet-transfer method using poly(methyl methacrylate), (PMMA). We exploit total internal reflection configuration and multi-heterodyne scanning near-field optical microscopy as a far-field coupling method and near-field characterization tool, respectively. The absorption is quantified in terms of propagation lengths of Bloch surface waves. A significant drop in the propagation length of the BSWs is observed in the presence of graphene layers. The propagation length of BSWs in bare multilayer is reduced to 17 times shorter in presence of graphene monolayer, and 23 times shorter for graphene bilayer.

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Transverse electric surface mode in atomically thin Boron–Nitride

Cited by 30 publications

References 31 publications

Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections

Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections

Optical response of a bilayer crystal

Bloch Surface Waves Using Graphene Layers: An Approach toward In-Plane Photodetectors

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