Accession Number : ADP006143

Title :   Selective Extinction of a Dispersion of Single and Aggregated Layered Spheres,

Corporate Author : MESSINA UNIV (ITALY) IST DI STRUTTURA DELLA MATERIA

Personal Author(s) : Borghese, F. ; Denti, P. ; Saija, R. ; Toscano, G.

Report Date : MAY 1987

Pagination or Media Count : 4

Abstract : The extinction coefficient for a low-density dispersion of small stratified spheres as well as for that of their binary aggregates has been calculated. We discuss the results for 50 A spheres with a core of MgO and a coating of A1, a case in which a dramatic shift of the resonance peaks as a function of the thickness could produce selective extinction in a wide range of frequency, although this effect could be strongly weakened if a considerable percentage of spheres aggregate.

Descriptors :   *ELECTROMAGNETIC SCATTERING, *LIGHT SCATTERING, SPHERES, EXTINCTION, MAGNESIUM OXIDES, METAL COATINGS, ALUMINUM, COEFFICIENTS, SYMPOSIA.

Subject Categories : Radiofrequency Wave Propagation
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE