Intrinsic multipolar contents of nanoresonators for tailored scattering

We introduce a theoretical and computational method to design resonant objects, such as nanoantennas or meta-atoms, exhibiting tailored multipolar responses. In contrast with common approaches that rely on a multipolar analysis of the scattering response of an object upon specific excitations, we propose to engineer the intrinsic (i.e., excitation-independent) multipolar content and spectral characteristics of the natural resonances---or quasinormal modes---of the object. A rigorous numerical approach for the multipolar decomposition of resonances at complex frequencies is presented, along with an analytical model conveying a direct physical insight into the multipole moments induced in the resonator. Our design strategy is illustrated by designing a subwavelength optical resonator exhibiting a Janus resonance that provides side-dependent coupling to waveguides over the full linewidth of the resonance and on a wide angular range for linearly polarized incident plane waves. The method applies to all kinds of waves and may open new perspectives for subwavelength-scale manipulation of scattering and emission.

[1]  S. Maier,et al.  Size-selective optical printing of silicon nanoparticles through their dipolar magnetic resonance , 2019, OPTO.

[2]  F. J. Rodríguez-Fortuño,et al.  Experimental demonstration of linear and spinning Janus dipoles for polarisation- and wavelength-selective near-field coupling , 2019, Light: Science & Applications.

[3]  C. Rockstuhl,et al.  Experimental demonstration of spectrally broadband Huygens sources using low-index spheres , 2019, APL Photonics.

[4]  G Demésy,et al.  Quasinormal mode solvers for resonators with dispersive materials. , 2018, Journal of the Optical Society of America. A, Optics, image science, and vision.

[5]  L. Zschiedrich,et al.  Heuristic Modeling of Strong Coupling in Plasmonic Resonators , 2018, ACS Photonics.

[6]  Y. Kivshar,et al.  Transverse Scattering and Generalized Kerker Effects in All-Dielectric Mie-Resonant Metaoptics. , 2018, Physical review letters.

[7]  G. Molina-Terriza,et al.  Enhanced spin-orbit optical mirages from dual nanospheres , 2018, Physical Review A.

[8]  Philippe Lalanne,et al.  Rigorous modal analysis of plasmonic nanoresonators , 2017, 1711.05011.

[9]  F. J. Rodríguez-Fortuño,et al.  Janus and Huygens Dipoles: Near-Field Directionality Beyond Spin-Momentum Locking. , 2017, Physical review letters.

[10]  Yuriy A. Artemyev,et al.  Multipolar response of nonspherical silicon nanoparticles in the visible and near-infrared spectral ranges , 2017 .

[11]  P. Richetti,et al.  Isotropic Huygens dipoles and multipoles with colloidal particles , 2017, 1707.08902.

[12]  A. Alú,et al.  Metagratings: Beyond the Limits of Graded Metasurfaces for Wave Front Control. , 2017, Physical review letters.

[13]  Philippe Lalanne,et al.  Light Interaction with Photonic and Plasmonic Resonances , 2017, Laser & Photonics Reviews.

[14]  C. Rockstuhl,et al.  An electromagnetic multipole expansion beyond the long-wavelength approximation , 2017, 1701.00755.

[15]  David A. Powell,et al.  Interference between the modes of an all-dielectric meta-atom , 2016, 1610.04980.

[16]  Y. Kivshar,et al.  Multimode directionality in all-dielectric metasurfaces , 2016, 1609.01875.

[17]  N. Bonod,et al.  All-Dielectric Colored Metasurfaces with Silicon Mie Resonators. , 2016, ACS nano.

[18]  Bin Liang,et al.  Convert Acoustic Resonances to Orbital Angular Momentum. , 2016, Physical review letters.

[19]  G. Theocharis,et al.  Use of complex frequency plane to design broadband and sub-wavelength absorbers. , 2016, The Journal of the Acoustical Society of America.

[20]  Fan Wang,et al.  Optical Manipulation and Spectroscopy Of Silicon Nanoparticles Exhibiting Dielectric Resonances. , 2016, Nano letters.

[21]  I. V. Semchenko,et al.  Broadband reflectionless metasheets: Frequency-selective transmission and perfect absorption , 2015, 1502.06916.

[22]  F. B. Arango,et al.  Underpinning Hybridization Intuition for Complex Nanoantennas by Magnetoelectric Quadrupolar Polarizability Retrieval , 2014 .

[23]  F. Zolla,et al.  Resonant metamaterial absorbers for infrared spectral filtering: quasimodal analysis, design, fabrication, and characterization , 2014, 1402.0387.

[24]  Boris N. Chichkov,et al.  Multipole analysis of light scattering by arbitrary-shaped nanoparticles on a plane surface , 2013 .

[25]  I. Brener,et al.  Tailoring directional scattering through magnetic and electric resonances in subwavelength silicon nanodisks. , 2013, ACS nano.

[26]  Nicolas Bonod,et al.  Optimization of resonant effects in nanostructures via Weierstrass factorization , 2013 .

[27]  P Lalanne,et al.  Theory of the spontaneous optical emission of nanosize photonic and plasmon resonators. , 2013, Physical review letters.

[28]  J. Sáenz,et al.  Magnetic and electric coherence in forward- and back-scattered electromagnetic waves by a single dielectric subwavelength sphere , 2012, Nature Communications.

[29]  F. Lederer,et al.  Multipole analysis of meta-atoms , 2011 .

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

[31]  J. Hafner,et al.  Symmetry breaking in individual plasmonic nanoparticles. , 2006, Proceedings of the National Academy of Sciences of the United States of America.

[32]  P. T. Leung,et al.  Quasinormal-mode expansion for waves in open systems , 1998 .

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

[34]  M. Mishchenko,et al.  Reprint of: T-matrix computations of light scattering by nonspherical particles: a review , 1996 .

[35]  B. P. Lathi.  Linear systems and signals , 1992 .

[36]  C. Lee Giles,et al.  Electromagnetic scattering by magnetic spheres , 1983 .

[37]  P. Nordlander,et al.  Plasmonic colour generation , 2017 .

[38]  Stefan Gottschalk,et al.  Electromagnetic Surface Modes , 2016 .