Relation between near-field and far-field properties of plasmonic Fano resonances.

The relation between the near-field and far-field properties of plasmonic nanostructures that exhibit Fano resonances is investigated in detail. We show that specific features visible in the asymmetric lineshape far-field response of such structures originate from particular polarization distributions in their near-field. In particular we extract the central frequency and width of plasmonic Fano resonances and show that they cannot be directly found from far-field spectra. We also address the effect of the modes coupling onto the frequency, width, asymmetry and modulation depth of the Fano resonance. The methodology described in this article should be useful to analyze and design a broad variety of Fano plasmonic systems with tailored near-field and far-field spectral properties.

[1]  H. D. Westlake.  In Memory of Adam Parry , 1977, The Classical Review.

[2]  Yasin Ekinci,et al.  Symmetry breaking in a plasmonic metamaterial at optical wavelength. , 2008, Nano letters.

[3]  U. Fano.  Effects of Configuration Interaction on Intensities and Phase Shifts , 1961 .

[4]  Benjamin Gallinet,et al.  Ab initio theory of Fano resonances in plasmonic nanostructures and metamaterials , 2011, 1105.2503.

[5]  Niels Verellen,et al.  Fano resonances in individual coherent plasmonic nanocavities. , 2009, Nano letters.

[6]  D. Bergman,et al.  Surface plasmon amplification by stimulated emission of radiation: quantum generation of coherent surface plasmons in nanosystems. , 2003, Physical review letters.

[7]  Peter Nordlander,et al.  Fano resonances in plasmonic nanoparticle aggregates. , 2009, The journal of physical chemistry. A.

[8]  P. Nordlander,et al.  Fano resonances in planar silver nanosphere clusters , 2010 .

[9]  Olivier J F Martin,et al.  Excitation and reemission of molecules near realistic plasmonic nanostructures. , 2011, Nano letters.

[10]  Olivier J. F. Martin,et al.  Controlling the Fano interference in a plasmonic lattice , 2007 .

[11]  Y. Wang,et al.  Plasmon-induced transparency in metamaterials. , 2008, Physical review letters.

[12]  V. Weisskopf,et al.  Effects of Configuration Interaction on Intensities and Phase Shifts , 2001 .

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

[14]  P. Nordlander,et al.  The Fano resonance in plasmonic nanostructures and metamaterials. , 2010, Nature materials.

[15]  S. L. Prosvirnin,et al.  Coherent meta-materials and the lasing spaser , 2008, 0802.2519.

[16]  Harald Giessen,et al.  Plasmonic analogue of electromagnetically induced transparency at the Drude damping limit. , 2009, Nature materials.

[17]  Yuri S. Kivshar,et al.  Fano Resonances in Nanoscale Structures , 2010 .

[18]  Niels Verellen,et al.  Experimental realization of subradiant, superradiant, and fano resonances in ring/disk plasmonic nanocavities. , 2010, ACS nano.

[19]  Benjamin Gallinet,et al.  Scattering on plasmonic nanostructures arrays modeled with a surface integral formulation , 2010 .

[20]  O. Martin,et al.  Surface integral formulation for 3D simulations of plasmonic and high permittivity nanostructures. , 2009, Journal of the Optical Society of America. A, Optics, image science, and vision.

[21]  Dries Vercruysse,et al.  Dark and bright localized surface plasmons in nanocrosses. , 2011, Optics express.

[22]  P. Nordlander,et al.  A Hybridization Model for the Plasmon Response of Complex Nanostructures , 2003, Science.

[23]  O. Martin,et al.  Accurate and versatile modeling of electromagnetic scattering on periodic nanostructures with a surface integral approach. , 2010, Journal of the Optical Society of America. A, Optics, image science, and vision.

[24]  Federico Capasso,et al.  Self-Assembled Plasmonic Nanoparticle Clusters , 2010, Science.

[25]  Ququan Wang,et al.  Fano resonances in dipole-quadrupole plasmon coupling nanorod dimers. , 2011, Optics letters.