Light Scattering

Eougenious L. Ivchenko, Grigory E. Pikus

Xiaoli Zhao

The phenomena of light scattering and several basic types of light scattering are briefly introduced and summarized in this article.In the quantum mechanics point of view,the light scattering was looked on as the interaction between photons and material atoms(scattering of photons and material atoms or collision),and their images was also given.Then all kinds of scattering,such as: Compton scattering,Rayleigh scattering and Raman scattering were discussed and analysed,and the relevant formulas were given.A lot of knowledge about the basic theory of light scattering and structure of atoms or molecules are obtained.

Marco O. Lanzagorta

M. Ya. Agre, Nikolai L. Manakov

It is shown that new effects in light scattering by oriented atoms and in orientation of an unpolarized atomic target due to the light scattering arise when channels of dissipation for the light energy are open. Thus, in scattering of linearly-polarized or unpolarized light, the degree of linear polarization and the angular distribution of scattered light depend on the initial atomic orientation. On the other hand, the orientation of unpolarized atoms appears in the scattering of unpolarized photons without registration of the scattered photon polarization. The orientation vector is perpendicular to the scattering plane, and the effect can be observed in a coincidence experiment.

R. Loudon

Abstract The basic components of a light-scattering experiment include a scattering region, with the atoms of interest illuminated by a parallel beam of light, and a detector that measures the scattered intensity at some finite angle to the direction of the incident beam. The scattering at small angles is usually difficult to resolve from the transmitted incident beam itself, and it is convenient in many experiments to measure the light scattered at right angles. In high-resolution studies, the atoms may be injected into the scattering region in the form of a beam in the third mutually perpendicular direction, to minimize the Doppler broadening of the scattered light.

B. Ziegler