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Presents the title page of the proceedings record.
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Provides a listing of current committee members and society officers.
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Presents the table of contents/splash page of the proceedings record.
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Graphene can be biased by electrical gating or by chemical doping, which modifies its Fermi level and enables the existence of surface plasmons propagating along graphene. These surface plasmons, because of the two-dimensional (2D) nature of this material, have very short wavelengths and extreme out-of-plane confinement. Graphene plasmons feature in the THz regime with relatively low losses, where...
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Transformation optics is a hot topic for nanophotonics, since it provides a direct way to manipulate light as people's will. So it can be used as a new design tool for the integrated optical device on-chip. But it often requires the materials' permeability and permittivity in a tensor form, which is difficult to be realized by the meta-materials in the regime of the visible and communication wavelength...
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Transformation optics (TO) give us an intuitive way to understand the behavior of electromagnetic wave in materials and has been a powerful tool to control light propagation since the two pioneering papers on invisibility in 2006. In the past decade, conformal transformation optics, as a special theory of TO in two dimensions, has extremely enriched the method to manipulate light propagation, which...
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In this paper, we begin with the metric which describes the propagation of the extraordinary ray in the hyperbolic metamaterials as the following: equation in which εo > 0 and εe < 0. We are interested in the z = const and also rescale the radial coordinate by ρ = √εor such that equation which γ2 = |εe/εo|. By considering the coordinate transformation X = ρ cosh γφ and Y = ρ sinh γφ, we can...
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Conventional photodetectors are mostly propelled by p-n junctions, where the detection wavelength is constrained by the bandgap of semiconductor material. Recently, a meta-linsulator-metal (MIM) configuration is demonstrated to be a promising candidate for the next generation photodetection due to its highly tunable operation wavelength, simple configuration, and possibly low cost. The MIM photodetector...
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Metamaterials have introduced many relevant new possibilities in the manipulation of light, microwaves, sound waves, and other systems. In many cases, the design and optimization of metamaterials has been achieved in conjunction with the mathematical technique of transformation optics, which allows one to guide rays of light or electromagnetic fields along desired directions. This is achieved by tailoring...
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We demonstrate that radial anisotropy can be employed to tune effectively the spectral positions of electric resonances of nanoparticles, which enables flexible overlapping of electric and magnetic dipoles of various numbers and thus leads to unidirectional forward superscattering. We further reveal that through adjusting the radial anisotropy parameters, electric and magnetic resonances of higher...
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Nanolasers with ultra-compact footprint can provide high intensity coherent light, which can have various potential applications in high capacity signal processing, biosensing, and sub-wavelength imaging [1–3]. Among various nanolasers, those lasers with cavities surrounded with metals have shown to have superior light emission properties due to the surface plasmon effect providing better field confinement...
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The mode properties of metal-coated nanocylinder resonators are numerically investigated for realizing directional emission. The metal confinement layer not only reduces the radiation loss greatly but also introduces a great metal dissipation loss. The compromise of the metal dissipation loss and the output coupling is investigated accounting the destructive interference of leakage waves. The TE and...
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The resonance phenomena of surface plasmons have led to a novel class of non-contact, real-time and label-free optical sensors which have become a central tool in biochemical sensing and detection. However, all kinds of surface plasmon resonances are with natively strong non-radiative Drude damping that weakens the resonance and limits the sensing performance fundamentally. We demonstrated that these...
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We experimentally demonstrate the enhancement of the spontaneous emission rate of GaAs quantum wells (QWs) embedded in rolled-up metamaterials. We investigate the spontaneous emission lifetime of semiconductor QW heterostructures which are directly integrated inside rolled-up microtubes (RMTs) with hyperbolic dispersion. RMTs are prepared by self-rolling of strained metal-semiconductor layer systems...
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Plasmonics is a potential route to optical devices that generate intense localized electric fields with unique capabilities in nonlinear optics. Many predict that sub-wavelength optical systems will be essential in the development of future optical integrated circuits, but realising this potential will be contingent on the ability to exploit plasmonic effects with semiconductor materials. Furthermore,...
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Lasers have in recent years become smaller and smaller, reaching with the demonstration of plasmonic nanolasing, scales much smaller than the wavelength of the light they emit [1, 2]. Such plasmonic nanolasers employ plasmonic resonances for feedback, allowing them to concentrate light into mode volumes that are no longer limited by diffraction. But it does not stop there. Next to this dramatic reduction...
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Scaling down semiconductor lasers in all three dimensions hold the key to the developments of compact, low-threshold, and ultrafast coherent light sources, as well as photonic integrated circuits. However, the minimum size of conventional semiconductor lasers utilizing dielectric cavity resonators (photonic cavities) is limited by the diffraction limit. Recently, it has been proposed and experimentally...
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Hyperbolic metasurfaces (HMS) combine the potential for chip-scale integration of optical metasurfaces with the properties of hyperbolic dispersion. In the ideal, lossless effective medium limit, HMS have an unbound optical density of states (DOS). The unbound DOS enables infinite mode densities in waveguides and cavities, and, in principal, an infinitely confined modal energy. The finite periodicity...
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This paper discusses the amplification of surface plasmons (SPs) via propagation through one or two optically-pumped dipolar gain materials incorporated into the claddings adjacent to a thin metal plane or stripe. Then, cavity designs to ensure single-mode SP lasing are discussed, emphasizing distributed feedback (DFB) concepts. Single-mode DFB lasers are then implemented as a step-in-width metal...
