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Titolo:
SENSITIVITY OF SAME OPTICAL-PROPERTIES OF FRACTALS TO THE CUTOFF FUNCTIONS
Autore:
BOTET R; RANNOU P; CABANE M;
Indirizzi:
UNIV PARIS 11,PHYS SOLIDES LAB,CNRS,LA2,BATIMENT 510 F-91405 ORSAY FRANCE UNIV PARIS 06,SERV AERON F-75252 PARIS 05 FRANCE
Titolo Testata:
Journal of physics. A, mathematical and general
fascicolo: 2, volume: 28, anno: 1995,
pagine: 297 - 316
SICI:
0305-4470(1995)28:2<297:SOSOOF>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
LIMITED AGGREGATION; HIERARCHICAL MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
R. Botet et al., "SENSITIVITY OF SAME OPTICAL-PROPERTIES OF FRACTALS TO THE CUTOFF FUNCTIONS", Journal of physics. A, mathematical and general, 28(2), 1995, pp. 297-316

Abstract

In physics, fractal objects are basically finite. This means that their geometrical features must be corrected by natural cut-offs. In the important example of aggregates of small units, the scaling behavioursbreak down both for small length-scales (reflecting the typical size of the monomers) and for large length-scales (due to the finite extentof the aggregate). These cut-off functions are either ignored in the theoretical studies, or they are modelled by a simple exponential function. In this paper we show that this simple form is not the generic case and that some physical properties depend quantitatively on the precise form of these cut-offs. Explicit analytical and numerical models,mainly connected to the cluster-cluster aggregation model, are studied from this perspective. All of them exhibit roughly the same form of cut-off function. We discuss the sensitivity to these functions of some optical properties of importance in light scattering experiments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 09:20:24