A novel method to produce solution-phase triangular silver nanoparticles is presented. Ag nanoparticles are prepared by nanosphere lithography and are subsequently released into solution. The resulting nanoparticles are asymmetrically functionalized to produce either single isolated nanoparticles or dimer pairs. The structural and optical properties of Ag nanoparticles have been characterized. ...

We present a framework to systematically study the duality properties of scatterers. The duality properties of a scatterer are related to the polarization change that a particle excerpts on a light beam. Our formalism can be applied to any geometry and material, but we develop it in the context of spherical scatterers. Due to their symmetries, we can formulate the problem semi-analytically usin...

Investigating spherical nano-particles by illumination of Gaussian beam was studied. In order to simulate the scattering e¤ect new software simulation based on the Bromwich formulation and the Mie theory was developed. The scattering simulation enables us to examine the scattered …eld a¤ected by the particle size and material composition. Studying the scattered …elds yielded sensors con…guratio...

A Monte Carlo method developed in ANSI Standard C-language is presented to simulate polarized light scattering by spherical particles having modal radius of 180nm. Single scattering is considered in this simulation program with monodispersed sub-micron sized spherical CdS particles. The simulation results were compared with experimental results obtained by using Mie-theory. The closeness of agr...

The absorption, scattering, and anisotropy coefficients of the fat emulsion Intralipid-10% have been measured at 457.9, 514.5, 632.8, and 1064 nm. The size and shape distributions of the scattering particles in Intralipid-10% were determined by transmission electron microscopy. Mie theory calculations performed by using the particle size distribution yielded values for the scattering and anisot...

The optics of rainbows and fogbows is investigated theoretically for monodisperse drops using Mie theory. Included in the calculations are a realistic solar illumination spectrum and the finite size of the sun. Drop sizes range from 3 to 300 microm (3800 > X > 38). Results are presented on the location, width, contrast, polarization, and color of both primary and secondary rainbows. Particular ...

Gold nanocrystals exhibit unique optical properties in enhanced light absorption and scattering owing to their extremely large scattering/absorption crosssections and large electric field enhancements generated by localized surface plasmon resonance. In this work, the optical properties of gold nanospheres with diameters of 60 nm and 200 nm with remarkable uniformity in size were studied both ...

Gaussian beam scattering by a spheroidal particle is studied in detail. A theoretical procedure is given to expand an incident Gaussian beam in terms of spheroidal vector wave functions within the generalized Lorenz-Mie theory framework. Exact analytic solutions are obtained for an arbitrarily oriented spheroid with nonconfocal dielectric coating. Normalized differential scattering cross sectio...

We use extended Mie theory to investigate optical forces induced by and acting on small silver nanoparticle aggregates excited at surface plasmon resonance. It is shown that single molecules can be trapped at junctions between closely spaced nanoparticles, which are simultaneously pulled together by optical forces. These effects could significantly influence surface-enhanced Raman scattering an...

About 25 years ago, when I became acquainted with the name Gustav Mie, I was unable to find an entry for him in such major encyclopedias as the Britannica or even in several listings of famous scientists [T. I. Williams, A Biographical Sketch of Scientists (Wiley, New York, 1967); J. Turkevich and L. Turkevich, Prominent Scientists of Continental Europe (Elsevier, New York, 1968)]. This puzzled...