Dielectric-loaded plasmonic nanoantenna arrays: A metamaterial with tuneable optical properties

Dickson, Wayne; Wurtz, Gregory A.; Evans, Paul; O’Connor, Daniel; Atkinson, R.; Pollard, Robert; Zayats, Anatoly V.

doi:10.1103/physrevb.76.115411

Cited by 96 publications

(83 citation statements)

References 24 publications

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“…Although they look similar to the modes of single metal nanorods as shown by [33][34][35] they differ in several important aspects owing to the nanorod arrangement. Firstly, because the nanorods are closely spaced there is a strong coupling between the plasmons of neighboring nanorods, [26,30] which leads to a peak being observed which, whilst related to the longitudinal resonance for an isolated nanorod, is actually a collective property of the nanorod array and is significantly blue shifted from what would be predicted for an isolated nanorod. [36].…”

Section: Discussionmentioning

confidence: 99%

“…[27,28] MMP allows for 3D calculations both in the electromagnetic near-and far-field, and hence sheds light on both aspects. Note that previously reported theoretical calculations using the finite element and Maxwell-Garnett theory focused either on the near-field [29,30] or the far-field [26] aspects only. MMP offers a concise and scale independent converging theoretical approach for modeling the nanorod array structures presented here.…”

Section: Multiple-multipoles Modelingmentioning

confidence: 99%

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Optical Transmission Properties and Electric Field Distribution of Interacting 2D Silver Nanorod Arrays

Evans

Kullock

Hendren

et al. 2008

Adv Funct Materials

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Silver nanorods have been grown by electrodeposition into thin film porous alumina templates (AAO). Optical transmission measurements using p‐polarized incident white light shows clear plasmon resonance extinction peaks. We successfully model the dependence on angle in incidence of extinction peak height and position using a multiple–multipoles (MMP) approach with the different spectral features being clearly associated with the effective electric field distribution and coupling between individual nanorods.

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Section: Discussionmentioning

confidence: 99%

Section: Multiple-multipoles Modelingmentioning

confidence: 99%

Optical Transmission Properties and Electric Field Distribution of Interacting 2D Silver Nanorod Arrays

Evans

Kullock

Hendren

et al. 2008

Adv Funct Materials

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“…[ 20,21 ] Nonlinear optical processes, which are proportional to the higher orders of the electric fi eld, are also dramatically boosted due to the plasmonic fi eld enhancement. [ 22,23 ] The examples include the enhancement of Kerr-type nonlinearity, [24][25][26][27] harmonic generation, [ 23,28,29 ] and four-wave mixing [ 30 ] in metal nanostructures and surrounding dielectrics, self-focusing and SPP-soliton formation, [ 31 ] and many others. Taking on the above properties, plasmonics offers a unique opportunity to combine the speed and the bandwidth of nanophotonics with the integration level of the electronics [ 32 ] and provide superior active functionalities leading to the development on nonlinear nanophotonic components.…”

Section: Plasmonics and Nanoscale Optical Circuitrymentioning

confidence: 99%

Active Nanophotonic Circuitry Based on Dielectric‐loaded Plasmonic Waveguides

Krasavin

Zayats

2015

Advanced Optical Materials

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Surface plasmon polaritons provide a unique opportunity to localize and guide optical signals on deeply subwavelength scales and can be used as a prospective information carrier in highly integrated photonic circuits. Dielectric‐loaded surface plasmon polariton waveguides present a particular interest for applications offering a unique platform for the realization of integrated active functionalities. This includes active control of plasmonic propagation using thermo‐optic, electro‐optic, and all‐optical switching as well as compensation of propagation losses. In this review, the principles and performance of such waveguides are discussed and the current status of the related active plasmonic components which can be integrated in silicon or other nanophotonic circuitries is summarized. A comparison of dielectric‐loaded and other plasmonic waveguides is presented and various material platforms and design pathways are discussed.

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“…We showed that arrays of vertically aligned nanowires with tunable dimensions-and hence optical properties-can be easily grown into anodic aluminium oxide templates using electrodeposition. 6 The implementation of 3BCMU as the host matrix for these arrays strongly modifies the optical properties in a similar manner (see Figure 1). This suggests the feasibility of creating optically active, nonlinear metallic waveguides with such particles.…”

Section: Figure 2 Dependence Of the Power Flow P Along The Dlspp Wmentioning

confidence: 99%

Nonlinear plasmonics: controlling light with light

Dickson¹,

Krasavin²

2009

SPIE Newsroom

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Hybridizing plasmonic structures with optically nonlinear material may enable the creation of an optical analog to the electronic circuit.Many scientists believe that the future of signal processing and computing lies not within electronics but in the field of subwavelength optics. Controlling light at sub-wavelength scales, forbidden by traditional far-field optics, relies on surface plasmon techniques. Surface plasmon polaritons (SPPs) are electromagnetic waves that exist on the surface of metals such as gold or silver. The interaction between the electromagnetic field and the free electrons in the metal helps confine SPPs tightly to the surface. The behavior of this wave can be manipulated by nanostructuring either the surface or a nearby dielectric. By contrast, metallic particles (or nanoscale dielectric voids in a metallic host) can enhance the field by supporting localized plasmonic excitations that create superior field confinement. Both mechanisms can locally control the electromagnetic field, a pre-requisite for the development of such light-based circuitry and devices.Researchers have used plasmonics to design and test various circuit elements such as waveguides, mirrors, lenses, and resonators based on nanostructured metal films. 1 These passive plasmonic systems can provide some of the essential components for signal processing and optical circuitry, but creating optical analogs to electrical circuits requires active devices.In order to directly make plasmonic components, scientists commonly propose two approaches, both based on the modification of the refractive index near the metal surface. The first uses the electro-optic effect exhibited, for example, by liquid crystal molecules. Here, the refractive index depends on the molecular alignment, which can be modulated using an electric field. Hybrid electro-optic devices are promising since electronic and photonic signals can be transferred, processed, and interconnected in the same metallic circuitry. A second method relies on dielectric materials with a large Kerr nonlinearity, or a refractive index that depends on the intensity of the illuminating light. Towards this goal, in 2006 2, 3 we exploited the optical nonlinearity of a poly-diacetylene molecule, 3-butoxycarbonylmethylurethane (3BCMU), on the surface plasmon polaritonic crystals (see Figure 1). These investigations followed initial work (following a similar approach) carried out as early as 2002. 4 We probed the optical properties of the nanostructured array using conventional white light spectroscopy. Simultaneously, we illuminated the structure with varying intensities of pump light from a continuous wave (CW) laser. By varying the pump power, we could control the spectral response of the structure. Surface plasmon resonances fueled the high-intensity local electromagnetic field close to the metal/dielectric boundary, enhancing the effect. In these structures, this leads to an inevitable loop, and the pump laser creates an intense field confined to the surface with a non-uniform spatial...

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Dielectric-loaded plasmonic nanoantenna arrays: A metamaterial with tuneable optical properties

Cited by 96 publications

References 24 publications

Optical Transmission Properties and Electric Field Distribution of Interacting 2D Silver Nanorod Arrays

Optical Transmission Properties and Electric Field Distribution of Interacting 2D Silver Nanorod Arrays

Active Nanophotonic Circuitry Based on Dielectric‐loaded Plasmonic Waveguides

Nonlinear plasmonics: controlling light with light

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