Near-field spectral analysis of metallic beads

The scattering and absorption properties of metal particles smaller than the wavelength are described. In particular, the surface plasmon resonance in gold and silver nanoparticles is mentioned. In Sec. 1 the dielectric function of noble metals, including the size effect is described. In Sec. 2 the scattering problem for a small metal sphere is solved using the static approximation and the exact Mie theory. In particular, the details of the near-field of the sphere are mentioned. Spectra of scattering, absorption, and near-field scattering cross sections are plotted. In Sec. 3 the scattering by ellipsoids is described. In Sec. 4 the scattering by coated spheres and metal shell particles are described. In Sec. 5 and 6 the scattering by a sphere above the substrate and two adjacent identical spheres is described. In the last section an optical sensor is mentioned as an application of the surface plasmon resonance in gold nanoparticles.

[1]  G. Mie.  Beiträge zur Optik trüber Medien, speziell kolloidaler Metallösungen , 1908 .

[2]  M. Natan,et al.  Self-Assembled Metal Colloid Monolayers: An Approach to SERS Substrates , 1995, Science.

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

[4]  P. K. Aravind,et al.  The effects of the interaction between resonances in the electromagnetic response of a sphere-plane structure; applications to surface enhanced spectroscopy , 1983 .

[5]  Meyer H. Birnboim,et al.  Composite structures for the enhancement of nonlinear-optical susceptibility , 1989 .

[6]  A. Maradudin,et al.  Theory of dielectrics , 1949 .

[7]  Milton Kerker,et al.  The Scattering of Light and Other Electromagnetic Radiation ~Academic , 1969 .

[8]  Michael J. Natan,et al.  Kinetic Control of Interparticle Spacing in Au Colloid-Based Surfaces: Rational Nanometer-Scale Architecture , 1996 .

[9]  Günter Gauglitz,et al.  Surface plasmon resonance sensors: review , 1999 .

[10]  Richard K. Chang,et al.  Local fields at the surface of noble-metal microspheres , 1981 .

[11]  A. Goyette,et al.  Two dielectric Spheres in an electric field , 1976 .

[12]  S. Asano,et al.  Light scattering by a spheroidal particle. , 1975, Applied optics.

[13]  A. Lucas,et al.  Aggregation effect on the infrared absorption spectrum of small ionic crystals , 1976 .

[14]  K A Fuller,et al.  Optical resonances and two-sphere systems. , 1991, Applied optics.

[15]  John E. Wessel,et al.  Surface-enhanced optical microscopy , 1985 .

[16]  Marcel Ausloos,et al.  Absorption spectrum of clusters of spheres from the general solution of Maxwell's equations. II. Optical properties of aggregated metal spheres , 1982 .

[17]  P. K. Aravind,et al.  The interaction between electromagnetic resonances and its role in spectroscopic studies of molecules adsorbed on colloidal particles or metal spheres , 1981 .

[18]  Parry Moon,et al.  Field Theory Handbook , 1961 .

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

[20]  Naomi J. Halas,et al.  Nanoengineering of optical resonances , 1998 .

[21]  C. Kittel.  Introduction to solid state physics , 1954 .

[22]  Zhou,et al.  Controlled synthesis and quantum-size effect in gold-coated nanoparticles. , 1994, Physical review. B, Condensed matter.

[23]  T Kobayashi,et al.  Local plasmon sensor with gold colloid monolayers deposited upon glass substrates. , 2000, Optics letters.

[24]  I. Willner,et al.  Organization of Au Colloids as Monolayer Films onto ITO Glass Surfaces: Application of the Metal Colloid Films as Base Interfaces To Construct Redox-Active Monolayers , 1995 .

[25]  Naomi J. Halas,et al.  Plasmon Resonance Shifts of Au-Coated Au 2 S Nanoshells: Insight into Multicomponent Nanoparticle Growth , 1997 .

[26]  Marcel Ausloos,et al.  Absorption spectrum of clusters of spheres from the general solution of Maxwell's equations. IV. Proximity, bulk, surface, and shadow effects (in binary clusters) , 1983 .

[27]  G. Schmid,et al.  Two‐Dimensional Arrangements of Gold Clusters and Gold Colloids on Various Surfaces , 1997 .

[28]  Richard K. Chang,et al.  Surface-Enhanced Electric Intensities on Large Silver Spheroids , 1983 .

[29]  D. Bedeaux,et al.  The polarizability of a truncated sphere on a substrate II , 1987 .

[30]  M. Ausloos,et al.  Absorption spectrum of clusters of spheres from the general solution of Maxwell's equations. The long-wavelength limit , 1980 .

[31]  H. Ahmed,et al.  Nanoscale colloidal particles: Monolayer organization and patterning , 1997 .

[32]  Ichirou Yamaguchi,et al.  Field Enhancement by a Metallic Sphere on Dielectric Substrates , 1999 .

[33]  D. A. Mcquarrie,et al.  Dielectric Constant of Simple Gases , 1968 .