Propagation of optical excitations by dipolar interactions in metal nanoparticle chains

Weber, W. H.; Ford, G. W.

doi:10.1103/physrevb.70.125429

Cited by 402 publications

(526 citation statements)

References 11 publications

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“…The Mie or plasma resonances of the individual dots act as the dipolar transitions, with a wavelength much larger than the dot size [9]. It has been realized that arrays of closely spaced quantum dots, considered as point dipoles, may be used as subwavelength guides for electromagnetic energy (plasmonics) [10,11]. It has also been suggested that quantum dots forming two-dimensional lattices may spontaneously polarize as a consequence of the interdot dipolar interactions, even for lattice constants of the order of 100 nm [12].…”

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confidence: 99%

Mode Softening, Ferroelectric Transition, and Tunable Photonic Band Structures in a Point-Dipole Crystal

2006

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Mode softening, ferroelectric transition, and tunable photonic band structures in a point-dipole crystal Klugkist, JA; Mostovoy, M; Knoester, J We study the photonic band structure of cubic crystals of point dipoles. It is shown that in contrast to earlier claims these systems cannot have an omnidirectional photonic band gap. For sufficiently large plasma frequencies, however, they exhibit softening of photonic bands, leading to (anti)ferroelectric ordering of the dipoles and the possibility to open and tune directional band gaps by external electric fields. The model studied may be realized through lattices of quantum dots.

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confidence: 99%

Mode Softening, Ferroelectric Transition, and Tunable Photonic Band Structures in a Point-Dipole Crystal

2006

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“…Due to the strong near-field coupling interaction among these nanoparticles, a coupled electric plasmon propagation mode can be established in this chain and can be used to transport EM energy in a transverse dimension that is considerably smaller than the corresponding wavelength of illumination [48][49][50][51][52][53]. As this system can overcome the diffractive limit, it can function as a novel kind of integrated sub-wavelength waveguide.…”

Section: Coherent Collective Waves In One-dimensional Meta-chainsmentioning

confidence: 99%

Hybridization effect in coupled metamaterials

Liu

Wang

et al. 2010

Front. Phys. China

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Although the invention of the metamaterials has stimulated the interest of many researchers and possesses many important applications, the basic design idea is very simple: composing effective media from many small structured elements and controlling its artificial EM properties. According to the effective-media model, the coupling interactions between the elements in metamaterials are somewhat ignored; therefore, the effective properties of metamaterials can be viewed as the "averaged effect" of the resonance property of the individual elements. However, the coupling interaction between elements should always exist when they are arranged into metamaterials. Sometimes, especially when the elements are very close, this coupling effect is not negligible and will have a substantial effect on the metamaterials' properties. In recent years, it has been shown that the interaction between resonance elements in metamaterials could lead to some novel phenomena and interesting applications that do not exist in conventional uncoupled metamaterials. In this paper, we will give a review of these recent developments in coupled metamaterials. For the "meta-molecule" composed of several identical resonators, the coupling between these units produces multiple discrete resonance modes due to hybridization. In the case of a "meta-crystal" comprising an infinite number of resonators, these multiple discrete resonances can be extended to form a continuous frequency band by strong coupling. This kind of broadband and tunable coupled metamaterial may have interesting applications. Many novel metamaterials and nanophotonic devices could be developed from coupled resonator systems in the future.

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“…phase, 17 and therefore more energy will be radiated out, instead of transmitted along the array. This explains the absence of the long-wavelength tail, which is seen for transverse excitation.…”

Section: A Isolated Chainmentioning

confidence: 99%

“…Guiding, bending, splitting, [10][11][12][13] and localization 14,15 of the optical excitations of the chain, as well as the time dependent properties, 16 have been studied carefully. Important insight into guiding properties of these systems was gained after computing the dispersion relations, 10,[17][18][19][20][21][22] both for finite and infinite chains. From these studies, it became clear that far-field interactions are very important 17 and that the excitations in the chain are of a surface plasmon polariton (SPP) nature.…”

Section: Introductionmentioning

confidence: 99%

“…Important insight into guiding properties of these systems was gained after computing the dispersion relations, 10,[17][18][19][20][21][22] both for finite and infinite chains. From these studies, it became clear that far-field interactions are very important 17 and that the excitations in the chain are of a surface plasmon polariton (SPP) nature. 18 It is well known that the radiative properties of emitters change if their local environment is modified.…”

Section: Introductionmentioning

confidence: 99%

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Surface-mediated light transmission in metal nanoparticle chains

2013

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Link to publication in University of Groningen/UMCG research database Citation for published version (APA): Compaijen, P. J., Malyshev, V. A., & Knoester, J. (2013). Surface-mediated light transmission in metal nanoparticle chains. Physical Review. B: Condensed Matter and Materials Physics, 87(20), 205437-1-205437-7. [205437]. https://doi.org/10.1103/PhysRevB.87.205437 Copyright Other than for strictly personal use, it is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license (like Creative Commons).Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. We study theoretically the efficiency of the transmission of optical signals through a linear chain consisting of identical and equidistantly spaced silver metal nanoparticles. Two situations are compared: the transmission efficiency through an isolated chain and through a chain in close proximity of a reflecting substrate. The Ohmic and radiative losses in each nanoparticle strongly affect the transmission efficiency of an isolated chain and suppress it to large extent. It is shown that the presence of a reflecting interface may enhance the guiding properties of the array. The reason for this is the energy exchange between the surface plasmon polaritons (SPPs) of the array and the substrate. We focus on the dependence of the transmission efficiency on the frequency and polarization of the incoming light, as well as on the influence of the array-interface spacing. Sometimes the effect of these parameters turns out to be counterintuitive, reflecting a complicated interplay of several transmission channels.

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Propagation of optical excitations by dipolar interactions in metal nanoparticle chains

Cited by 402 publications

References 11 publications

Mode Softening, Ferroelectric Transition, and Tunable Photonic Band Structures in a Point-Dipole Crystal

Mode Softening, Ferroelectric Transition, and Tunable Photonic Band Structures in a Point-Dipole Crystal

Hybridization effect in coupled metamaterials

Surface-mediated light transmission in metal nanoparticle chains

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