Analyzing the scattering properties of coupled metallic nanoparticles.

We apply the boundary element method to the analysis of the plasmon response of systems that consist of coupled metallic nanoscatterers. For systems made of two or more objects, the response depends strongly on the individual particle behavior as well as on the separation distance and on the configuration of the particles relative to the illumination direction. By analyzing the behavior of these systems, we determine the smallest interaction distance at which the particles can be considered decoupled. We discriminate the two cases of particle systems consisting of scatterers with the same and different resonance wavelengths.

[1]  M. Moskovits.  Surface-enhanced spectroscopy , 1985 .

[2]  Eric Bourillot,et al.  Direct observation of localized surface plasmon coupling , 1999 .

[3]  G. Schatz,et al.  Discrete dipole approximation for calculating extinction and Raman intensities for small particles with arbitrary shapes , 1995 .

[4]  Dennis W. Prather,et al.  Boundary integral methods applied to the analysis of diffractive optical elements , 1997 .

[5]  Z. Kam,et al.  Absorption and Scattering of Light by Small Particles , 1998 .

[6]  J. Kottmann,et al.  Influence of the cross section and the permittivity on the plasmon-resonance spectrum of silver nanowires , 2001 .

[7]  Bernhard Lamprecht,et al.  Optical properties of two interacting gold nanoparticles , 2003 .

[8]  G. Padeletti,et al.  How the masters in Umbria, Italy, generated and used nanoparticles in art fabrication during the Renaissance period , 2003 .

[9]  F. Aussenegg,et al.  Electromagnetic energy transport via linear chains of silver nanoparticles. , 1998, Optics letters.

[10]  Hans Peter Herzig,et al.  Application of the boundary-element method to the interaction of light with single and coupled metallic nanoparticles. , 2003, Journal of the Optical Society of America. A, Optics, image science, and vision.

[11]  R. W. Christy,et al.  Optical Constants of the Noble Metals , 1972 .

[12]  Harry A. Atwater,et al.  Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle plasmon waveguides , 2003, Nature materials.

[13]  T. Ohms,et al.  Do Mie plasmons have a longer lifetime on resonance than off resonance? , 2001 .

[14]  Hideki T. Miyazaki,et al.  Resonant light scattering from individual Ag nanoparticles and particle pairs , 2002 .

[15]  J. Kottmann,et al.  Accurate solution of the volume integral equation for high-permittivity scatterers , 2000 .

[16]  J. Kottmann,et al.  Retardation-induced plasmon resonances in coupled nanoparticles. , 2001, Optics letters.

[17]  Carsten Sönnichsen,et al.  Plasmon resonances in large noble-metal clusters , 2002 .

[18]  A. Requicha,et al.  Plasmonics—A Route to Nanoscale Optical Devices , 2001 .

[19]  H. Ditlbacher,et al.  Spectrally coded optical data storage by metal nanoparticles. , 2000, Optics letters.

[20]  Harry A. Atwater,et al.  Electromagnetic energy transfer and switching in nanoparticle chain arrays below the diffraction limit , 2000 .

[21]  Christian Hafner,et al.  Multiple multipole method with automatic multipole setting applied to the simulation of surface plasmons in metallic nanostructures. , 2002, Journal of the Optical Society of America. A, Optics, image science, and vision.

[22]  J. Kottmann,et al.  Plasmon resonant coupling in metallic nanowires. , 2001, Optics express.