Undamped collective surface plasmon oscillations along metallic nanosphere chains
نویسندگان
چکیده
منابع مشابه
Plasmon-Polariton Properties in Metallic Nanosphere Chains
The propagation of collective wave type plasmonic excitations along infinite chains of metallic nanospheres has been analyzed, including near-, medium- and far-field contributions to the plasmon dipole interaction with all retardation effects taken into account. It is proven that there exist weakly-damped self-modes of plasmon-polaritons in the chain for which the propagation range is limited b...
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We present experimental data on the light scattering properties of linear chains of gold nanoparticles with up to six nanoparticles and an interparticle spacing of 1 nm. A red shift of the surface plasmon resonance with increasing chain length is observed. An exponential model applied to the experimental data allows determination of an asymptotic maximum resonance at a chain length of 10-12 par...
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Chiral surface plasmon polaritons (SPPs) can be generated by linearly polarized light incident at the end of a nanowire, exciting a coherent superposition of three specific nanowire waveguide modes. Images of chiral SPPs on individual nanowires obtained from quantum dot fluorescence excited by the SPP evanescent field reveal the chirality predicted in our theoretical model. The handedness and s...
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We calculate the surface plasmon dispersion relations for a periodic chain of spherical metallic nanoparticles in an isotropic host, including all multipole modes in a generalized tight-binding approach. For sufficiently small particles (kd ≪ 1, where k is the wave vector and d is the interparticle separation), the calculation is exact. The lowest bands differ only slightly from previous point-...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2010
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.3493263