Ramsauer approach to Mie scattering of light on spherical particles
نویسنده
چکیده
Abstract. The scattering of an electromagnetic plane wave by a spherical particle was solved analytically by Gustav Mie in 1908. The Mie solution is expressed as a series with many terms thus obscuring the physical insight. The purpose of this paper is to show that when light scattering is described through the Ramsauer model, the physics gets simpler. For instance, the origin of the structures of the total cross section is unveiled and it is shown that the momentum of light inside a dielectric is greater than in vacuum.
منابع مشابه
A Computer Modeling of Mie-Scattering by Spherical Droplets Within the Atmosphere
The Earth’s atmosphere is an environment replete with particles of differ-ent sizes with various refractive indices which affect the light radiation traveling through it. The Mie scattering theory is one of the well-known light scattering techniques ap-plicable to modeling of electromagnetic scattering from tiny atmospheric particles or aerosols floating in the air or within the clouds. In this...
متن کاملRamsauer approach for light scattering on nonabsorbing spherical particles and application to the Henyey-Greenstein phase function.
We present a new method to study light scattering on nonabsorbing spherical particles. This method is based on the Ramsauer approach, a model known in atomic and nuclear physics. Its main advantage is its intuitive understanding of the underlying physics phenomena. We show that although the approximations are numerous, the Ramsauer analytical solutions describe fairly well the scattering phase ...
متن کاملInteraction of Laser Beam and Gold Nanoparticles, Study of Scattering Intensity and the Effective Parameters
In this paper, the optical properties of gold nanoparticles investigated. For this purpose the scattering intensity of a laser beam incident on gold nanoparticles has been studied using Mie theory and their respective curves versus different parameters such as scattering angle, wavelength of the laser beam and the size of gold nanoparticles are plotted. Investigating and comparison of the depi...
متن کاملDetermination of the size distribution of monodesperse and bidisperse mixtures of spherical particles in the nanometer and submicron size range by applying cumulant analysis and contin algorithm in dynamic light scattering
Determination of particle size is one of the major needs in the industry and biotechnology. Dynamic light scattering (DLS) is a widely used technique for determining size distribution of spherical particle in nanometer and submicron size range. In this method, there are different algorithms for determining the size and size distribution of particles, which are selected according to the required...
متن کاملSimulation of Light Scattering from Spherical Particles in a Volume Element
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...
متن کامل