Angle- and Spectral-Dependent Light Scattering from Plasmonic Nanocups

King, N.S.P.; Yang, Li; Ayala-Orozco, Ciceron; Brannan, Travis; Nordlander, Peter; Halas, Naomi J.

doi:10.1021/nn202086u

Cited by 99 publications

(116 citation statements)

References 44 publications

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“…One is the shell cutting, which is generated by excising a part of the outer Au shell; the other is the core offsetting, which means the nanostructures have a nonconcentric core. The nanostructures of shell cutting include the nanocap [19], the nanocup [20][21][22], and the perforated Ausilica-Au multilayer nanoshells [23], and so on. The shellcutting nanostructures can be fabricated by anisotropic etching [24,25] or template deposition [19].…”

Section: Introductionmentioning

confidence: 99%

Dual Symmetry Breaking in Gold-Silica-Gold Multilayer Nanoshells

et al. 2014

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In this study, the optical properties induced by dual symmetry breaking including both shell cutting and core offsetting in the gold-silica-gold multilayer nanoshells have been studied by the discrete dipole approximation simulations and the plasmon hybridization theory. The influences of the incident polarization and geometrical parameters on the plasmon resonances of these dual-symmetry-breaking Au-silicaAu multilayer nanoshells (DSMNS) are investigated. Under the combined effect of the two types of symmetry breaking, it is found that the polarization-dependent multiple plasmon resonances can be induced in the DSMNS. By changing the polarization of 90 o , the switching of the two transparency windows can be flexibly adjusted in the DSMNS with different types of Au core offsetting. This polarization-controlled transparency is likely to generate a wide range of photonic applications such as filters and color displays. Furthermore, the local refractive index sensitivity of the DSMNS is also investigated, and the triple extinction peaks simultaneous shift is found as the surrounding medium changed, which suggests the potential applications for biological sensors.

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Section: Introductionmentioning

confidence: 99%

Dual Symmetry Breaking in Gold-Silica-Gold Multilayer Nanoshells

et al. 2014

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“…Resonant plasmonic structures are one of the most promising solutions to this problem due to their ability to capture and concentrate visible light at subwavelength dimensions 1,2 . Different types of nanoscale optical devices such as nanolenses 3,4 , nano-waveguides 5,6 , nanoantennas [7][8][9][10][11][12][13][14] and so on based on metallic nanoparticles have been demonstrated. Many of these functional devices such as nanoantennas are designed in analogy with microwave optics, where metals are routinely used for manipulation of the electromagnetic radiation 8,9,12 .…”

mentioning

confidence: 99%

Directional visible light scattering by silicon nanoparticles

et al. 2013

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Directional light scattering by spherical silicon nanoparticles in the visible spectral range is experimentally demonstrated for the first time. These unique optical properties arise because of simultaneous excitation and mutual interference of magnetic and electric dipole resonances inside a single nanosphere. Such behaviour is similar to Kerker's-type scattering by hypothetic magneto-dielectric particles predicted theoretically three decades ago. Here we show that directivity of the far-field radiation pattern of single silicon spheres can be strongly dependent on the light wavelength and the nanoparticle size. For nanoparticles with sizes ranging from 100 to 200 nm, forward-to-backward scattering ratio above six can be experimentally obtained, making them similar to 'Huygens' sources. Unique optical properties of silicon nanoparticles make them promising for design of novel low-loss visible-and telecom-range metamaterials and nanoantenna devices.

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“…2(b)). Moreover, the outstanding angular sensitivity attributed to the symmetry-broken metallic semishells can open up applications such as infrared angular sensors or modulators [22,23].…”

Section: Resultsmentioning

confidence: 99%

A stretch-tunable plasmonic structure with a polarization-dependent response

Zhu¹,

Xiao²,

Shi³

et al. 2012

Opt. Express

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We experimentally demonstrate a stretchable plasmonic structure composed of a monolayer array of gold semishells with dielectric cores on an elastic PDMS substrate. The composite structure is fabricated using simple and inexpensive self-assembly and transfer-printing techniques, and it supports Bragg-type surface plasmon resonances whose frequencies are sensitive to the arrangement of the metallic semishells. Under uniaxial stretching, the lattice symmetry of this plasmonic structure can be reconfigured from hexagonal to monoclinic, leading to resonance frequency shifts from 200 THz to 191 THz for the TM polarization and from 200 THz to 198 THz for the TE polarization with a strain up to 20%, respectively. Compared with previously reported tunable plasmonic structures, the reconfiguration of lattice symmetry offers a promising approach to tune the surface plasmon resonance with a polarization-dependent response at the standard telecommunication band, and such tunable plasmonic structure might be exploited in realizing photonic devices such as sensors, switches and filters.

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Angle- and Spectral-Dependent Light Scattering from Plasmonic Nanocups

Cited by 99 publications

References 44 publications

Dual Symmetry Breaking in Gold-Silica-Gold Multilayer Nanoshells

Dual Symmetry Breaking in Gold-Silica-Gold Multilayer Nanoshells

Directional visible light scattering by silicon nanoparticles

A stretch-tunable plasmonic structure with a polarization-dependent response

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