Optical properties of periodic structures of metallic nanodisks

Gantzounis, G.; Stéfanou, N.; Papanikolaou, N.

doi:10.1103/physrevb.77.035101

Cited by 44 publications

(48 citation statements)

References 28 publications

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“…follows, we experimentally demonstrate our approach in waveguided plasmonic crystals [8][9][10][11][12]. The elastic scattering Mueller matrices from the samples were recorded using a home-built spectroscopic Mueller matrix system integrated with an inverted microscope operating in the dark-field mode (see Supplementary Figure S1) [26].…”

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confidence: 99%

“…Fano resonance that exhibits a characteristic asymmetric spectral line shape, is a universal phenomenon observed throughout atomic, molecular [1,2] optical [3][4][5][6][7][8][9][10][11][12][13][14][15], nuclear [16] and solid state systems [17]. The asymmetric spectral line shape arises due to the interference of a discrete state with a continuum of states and is modeled using the Fano asymmetry parameter -q [1,3,4].…”

mentioning

confidence: 99%

“…Indeed, Fano-type spectral asymmetry has been observed in the scattered intensity from various optical systems, in plasmonic nanostructures, in electromagnetic metamaterials, in photonic crystals, in Mie scattering from dielectric objects etc. [3][4][5][6][7][8][9][10][11][12][13][14][15]. Fano resonances in such micro and nano optical systems have been the subject of intensive investigations due to their numerous potential applications like in sensing, switching, lasing, filters and robust color display, nonlinear and slow-light devices, invisibility cloaking, and so forth [2,4,5,[18][19][20][21].…”

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confidence: 99%

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Polarization-Tailored Fano Interference in Plasmonic Crystals: A Mueller Matrix Model of Anisotropic Fano Resonance

et al. 2017

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We present a simple yet elegant Mueller matrix approach for controlling the Fano interference effect and engineering the resulting asymmetric spectral line shape in anisotropic optical system. The approach is founded on a generalized model of anisotropic Fano resonance, which relates the spectral asymmetry to two physically meaningful and experimentally accessible parameters of interference, namely, the Fano phase shift and the relative amplitudes of the interfering modes. The differences in these parameters between orthogonal linear polarizations in an anisotropic system are exploited to desirably tune the Fano spectral asymmetry using pre-and post-selection of optimized polarization states. We begin with a phenomenological model where a Fano-type spectral asymmetry in the scattered intensity naturally arises due to the interference of the complex Lorentzian field ( ( )) of a narrow resonance with a broad spectrum of relative field amplitude ( ) assumed to be independent of frequency (ideal continuum):Here, = ( ) = −The resulting expression for the scattered intensity becomes The first term represents the Fano-type asymmetric line shape with an effective asymmetry parameter = ⁄ . The second term corresponds to a Lorentzian background, widely reported in Fano resonance from diverse optical systems [6,25]. It is

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confidence: 99%

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confidence: 99%

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Polarization-Tailored Fano Interference in Plasmonic Crystals: A Mueller Matrix Model of Anisotropic Fano Resonance

et al. 2017

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“…T-matrix calculations of optical resonances in nonspherical particles and particle clusters [4,5,15,18,26,40,48,49,61,72,74,79,[86][87][88][92][93][94]100,154,155,164,169,183,184,197,198,199,211,228,233]. [12,24,25,42,95,113,138,139,189,190,191].…”

Section: T-matrix Calculations For Particles With One or Several (Eccmentioning

confidence: 99%

Comprehensive T-matrix reference database: A 2006–07 update

Mishchenko

Videen

Khlebtsov

et al. 2008

Journal of Quantitative Spectroscopy and Radiative Transfer

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a b s t r a c tThe T-matrix method is among the most versatile, efficient, and widely used theoretical techniques for the numerically exact computation of electromagnetic scattering by homogeneous and composite particles, clusters of particles, discrete random media, and particles in the vicinity of an interface separating two half-spaces with different refractive indices. This paper presents an update to the comprehensive database of Tmatrix publications compiled by us previously and includes the publications that appeared since 2007. It also lists several earlier publications not included in the original database.Published by Elsevier Ltd.

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“…This scattering geometry differs from that in most previous studies of surface plasmons in nanodot arrays, which have generally considered light incident directly on the metallic surfaces of the arrays, and is relevant also to potential applications of surface-plasmon enhancement in photovoltaics [17][18][19][20][21] and nanolithography. 22,23 Although a substantial number of papers have focused on the excitation of surface plasmons in arrays of noble-metal disks, spheres, or pyramids, 22,[24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] only a small fraction of the extensive parameter space of such arrays (including target geometry, material properties, and incident wavevector) has been explored. Because complete field calculations are computationally intensive, most modeling studies have been restricted to normal-incidence far-field extinction, absorption, or scattering.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Arrays of Gold Nanodisks for Plasmon-Mediated Brillouin Light Scattering

et al. 2009

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Distributions of electric fields in two-dimensional arrays of gold nanodisks on a Si 3 N 4 membrane, with light incident through the membrane, are modeled with the aim of determining array geometries for effective plasmon-mediated Brillouin light scattering ("surface-enhanced Brillouin scattering") from phonons or magnons in a specimen placed in contact with such an array. Particular attention is devoted to average intensities and higher-wavevector components of the fields in a plane 2 nm from the circular nanodisk/vacuum interface, which is anticipated to be in the vicinity of the surface of a specimen. For nanodisks with diameters of 50 nm, the average intensity near the circular nanodisk/vacuum interface increases as the angle of the incident light approaches the normal of the Si 3 N 4 surface. At low angles of incidence relative to the Si 3 N 4 normal, average intensities also increase with decreasing array spacing, primarily because of the corresponding changes in fractional coverage area of the gold. The highest average intensities (with near-normal incidence and 70 nm array periodicity) are found to be ∼3 times that of the incident light. More significantly, higher-wavevector components of the fields are found to have intensities comparable to the incident light. This finding provides evidence for the feasibility of using surface plasmons in nanodisk or nanoline arrays to mediate Brillouin scattering from phonons or magnons with wavelengths of a few tens of nanometers, which would extend the wavevector range of Brillouin-scattering metrology by an order of magnitude.

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Optical properties of periodic structures of metallic nanodisks

Cited by 44 publications

References 28 publications

Polarization-Tailored Fano Interference in Plasmonic Crystals: A Mueller Matrix Model of Anisotropic Fano Resonance

Polarization-Tailored Fano Interference in Plasmonic Crystals: A Mueller Matrix Model of Anisotropic Fano Resonance

Comprehensive T-matrix reference database: A 2006–07 update

Optimization of Arrays of Gold Nanodisks for Plasmon-Mediated Brillouin Light Scattering

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