2008
DOI: 10.1103/physrevb.77.205423
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Analytical study of the plasmonic modes of a metal nanoparticle circular array

Abstract: We analyze the plasmonic modes of a metal nanoparticle circular array. Closed-form solutions to the eigenmode problem are presented. For each polarization, the plasmonic mode with the highest quality is found to be in antiphase. The significant suppression of radiative loss can be understood as the cancellation of the dipolar radiation term in the radiative linewidth. The remaining finite radiative linewidth decreases exponentially as the number of particle increases.

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Cited by 32 publications
(31 citation statements)
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“…The dipolar ED method was applied successfully to systems such as disordered arrays, 17 periodic MNP, 12 and circular arrays. 20 The key advantage of this approach is that it does not require either numerical complex root searching 29 or root approximation 30 in the complex number plane. In addition, the method is efficient.…”
Section: Physical System and Methods Of Calculationmentioning
confidence: 99%
See 2 more Smart Citations
“…The dipolar ED method was applied successfully to systems such as disordered arrays, 17 periodic MNP, 12 and circular arrays. 20 The key advantage of this approach is that it does not require either numerical complex root searching 29 or root approximation 30 in the complex number plane. In addition, the method is efficient.…”
Section: Physical System and Methods Of Calculationmentioning
confidence: 99%
“…A ring mode with even parity can radiate strongly. 20 From the Fourier analysis in Fig. 3͑b͒, it has strong out-of-plane radiations as the Fourier components of the mode peak within the light cone.…”
Section: Decay Behaviors Of Localized Modesmentioning
confidence: 99%
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“…Guided waves in anisotropic or plasmonic waveguides have been shown to "experience" an effective negative permeability, [11][12][13] and many other proposals of utilizing properly designed plasmonic resonances for inducing a magnetic-dipole response have been presented independently by several groups. [14][15][16][17][18][19][20][21][22][23][24][25][26][27] In particular, the coupling between a pair of closely spaced plasmonic nanoparticles has been shown in Refs. 14-25 to support an antisymmetric resonance exhibiting a sensible magnetic-dipole contribution.…”
Section: Introductionmentioning
confidence: 99%
“…Рассматриваемая на рис. 1 кольцевая геометрия задачи может быть аналогична кольцевым массивам наночастиц, свойства которых и взаимодей-ствие с электромагнитным излучением также изучаются в последнее время [40][41][42][43]. Обычно комбинационно-активные молекулы являют-ся анизотропными, поэтому в рассматриваемой схеме необходимо, чтобы оси частиц были ориентированы перпендикулярно плоскости окружности в каждой точке на круге и возбуждающее поле было поляризовано также в этом направлении.…”
Section: теоретическая модель и рассмативаемая системаunclassified