Plasmonic surface lattice resonances in arrays of metallic nanoparticle dimers

Humphrey, Alastair D.; Barnes, William

doi:10.1088/2040-8978/18/3/035005

Cited by 48 publications

(52 citation statements)

References 49 publications

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“…At the same time, calculations in the parallel situation also indicate narrow resonances, albeit slightly wider. 91 The results in Figure 3 (b) indicate that for a 2D array the spectral position of the resonance scales as the particle separation rises in a manner that is similar to that for the 1D chains, albeit with resonances that are slightly broader. Zou et al also found that other wavevector and polarization choices led, for a given spacing, to broader line-shapes.…”

Section: Early Theoretical Studies Of Diffractively Coupled Localizedmentioning

confidence: 76%

Plasmonic Surface Lattice Resonances: A Review of Properties and Applications

et al. 2018

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When metal nanoparticles are arranged in an ordered array, they may scatter light to produce diffracted waves. If one of the diffracted waves then propagates in the plane of the array, it may couple the localized plasmon resonances associated with individual nanoparticles together, leading to an exciting phenomenon, the drastic narrowing of plasmon resonances, down to 1–2 nm in spectral width. This presents a dramatic improvement compared to a typical single particle resonance line width of >80 nm. The very high quality factors of these diffractively coupled plasmon resonances, often referred to as plasmonic surface lattice resonances, and related effects have made this topic a very active and exciting field for fundamental research, and increasingly, these resonances have been investigated for their potential in the development of practical devices for communications, optoelectronics, photovoltaics, data storage, biosensing, and other applications. In the present review article, we describe the basic physical principles and properties of plasmonic surface lattice resonances: the width and quality of the resonances, singularities of the light phase, electric field enhancement, etc. We pay special attention to the conditions of their excitation in different experimental architectures by considering the following: in-plane and out-of-plane polarizations of the incident light, symmetric and asymmetric optical (refractive index) environments, the presence of substrate conductivity, and the presence of an active or magnetic medium. Finally, we review recent progress in applications of plasmonic surface lattice resonances in various fields.

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Section: Early Theoretical Studies Of Diffractively Coupled Localizedmentioning

confidence: 76%

Plasmonic Surface Lattice Resonances: A Review of Properties and Applications

et al. 2018

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“…. , k max + 1 do 2 Compute r k = aB kmax+νmax r k−1 where B kmax+νmax+1 is given by (31) end 3 Set q = J T e 1 where J = J µ ∈ C kmax×kmax given in (24) for i = 1, . .…”

Section: Numerical Simulationsmentioning

confidence: 99%

“…Adjacent resonators are of particular interest as they exhibit oscillatory modes that cannot be excited by single resonators and have interesting physical properties such as special mode symmetries (fanoresonances) that may exhibit strong coupling, and higher Q-factors [24,41,39].…”

Section: Disk Dimer Problemmentioning

confidence: 99%

Efficient resonance computations for Helmholtz problems based on a Dirichlet-to-Neumann map

Araujo-Cabarcas

Engström

Jarlebring

2018

Journal of Computational and Applied Mathematics

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We present an efficient procedure for computing resonances and resonant modes of Helmholtz problems posed in exterior domains. The problem is formulated as a nonlinear eigenvalue problem (NEP), where the nonlinearity arises from the use of a Dirichlet-to-Neumann map, which accounts for modeling unbounded domains. We consider a variational formulation and show that the spectrum consists of isolated eigenvalues of finite multiplicity that only can accumulate at infinity. The proposed method is based on a high order finite element discretization combined with a specialization of the Tensor Infinite Arnoldi method. Using Toeplitz matrices, we show how to specialize this method to our specific structure. In particular we introduce a pole cancellation technique in order to increase the radius of convergence for computation of eigenvalues that lie close to the poles of the matrix-valued function. The solution scheme can be applied to multiple resonators with a varying refractive index that is not necessarily piecewise constant. We present two test cases to show stability, performance and numerical accuracy of the method. In particular the use of a high order finite element discretization together with TIAR results in an efficient and reliable method to compute resonances.

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“…Another way to influence LSPRs in nanoparticles is by bringing them in close vicinity to one another to create coupled modes via resonant plasmon scattering. It is also possible to generate constructive interferences of the scattered fields of all the nanoparticles in an arrangement, also referred to as surface lattice resonances (SLRs) or superlattice resonances in case of hierarchical arrays . These collective resonances can impact the existing LSPR of the isolated object or even give rise to new features in the optical response of the particle assembly.…”

Section: Introductionmentioning

confidence: 99%

Periodic Arrays of Diamond‐Shaped Silver Nanoparticles: From Scalable Fabrication by Template‐Assisted Solid‐State Dewetting to Tunable Optical Properties

Jacquet

Bouteille

Dezert

et al. 2019

Adv Funct Materials

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Periodic arrays of anisotropic silver nanoparticles having peculiar optical properties are fabricated at a macroscopic scale. The proposed scalable method is based on temperature-assisted solid-state dewetting of a continuous thin layer deposited on a silica substrate patterned by the nano imprint technique. The resulting nanoparticles are shaped like diamonds and are half-embedded into the patterned silica. A period-dependent optimum in film thickness for the quality of spatial organization is found and discussed in terms of thermodynamics and, for the first time, in terms of the role of grains in the dewetting process. The optical properties of the arrays are driven by not only simply the particle shape but also the lattice period and the degree of order. A surface lattice resonance that disperses with the underlying period is evidenced experimentally and confirmed by optical simulations. The opportunity to fabricate and tune such an assembly of plasmonic particles on transparent substrate opens interesting perspectives for not only fundamental photonics but also potential optical applications.

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Plasmonic surface lattice resonances in arrays of metallic nanoparticle dimers

Cited by 48 publications

References 49 publications

Plasmonic Surface Lattice Resonances: A Review of Properties and Applications

Plasmonic Surface Lattice Resonances: A Review of Properties and Applications

Efficient resonance computations for Helmholtz problems based on a Dirichlet-to-Neumann map

Periodic Arrays of Diamond‐Shaped Silver Nanoparticles: From Scalable Fabrication by Template‐Assisted Solid‐State Dewetting to Tunable Optical Properties

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