Light Scattering From Micrometric Mineral ...

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Beschreibung

Light scattering from particles in the nanometric and micrometric size range is relevant in several research fields, such as aerosol science and nanotechnology. In many applications, the description of the optical properties of non-spherical, inhomogeneous particles is still inadequate or requires demanding numerical calculations. Lorenz¿Mie scattering and effective medium approximations represent currently the main theoretical tools to model such particles, but their effectiveness has been recently called into question.

This work examines how the morphology of a particle affects its scattering parameters from an experimental standpoint, supporting findings with extensive simulations. The dust content of Antarctic, Greenlandic, and Alpine ice cores is analysed with a particle-by-particle approach. Moreover, a study on colloidal aggregates shows that correlations among the fields radiated by primary particles are responsible for the poor agreement of effective medium approximations with experimental results. On the theoretical side, an interpretation in terms of the structure factor is given, which satisfactorily describes the data. The insights of this thesis are relevant for quantifying the contribution of mineral dust to the radiative energy balance of the Earth.

Zusammenfassung

Nominated as an outstanding Ph.D. thesis by the Stockholm University, Stockholm, Sweden

Refines the analysis of scattering by mineral dust particles beyond mean field approximations, from an experimental, theoretical, and numerical point of view

Includes a comprehensive overview of the current theoretical methods commonly used in the field

Based on an experimental method which gives access to the extinction and the optical thickness without any free parameters

Inhaltsverzeichnis

Introduction.- Scattering Fundamentals.- Scattering Models.- Mineral Dust.- Fractal Aggregates.- Conclusions.

Details

Erscheinungsjahr:	2020
Fachbereich:	Elektrizität/Magnetismus/Optik
Genre:	Physik
Rubrik:	Naturwissenschaften & Technik
Medium:	Buch
Reihe:	Springer Theses
Inhalt:	xiv 142 S. 51 s/w Illustr. 11 farbige Illustr. 142 p. 62 illus. 11 illus. in color.
ISBN-13:	9783030567866
ISBN-10:	3030567869
Sprache:	Englisch
Ausstattung / Beilage:	HC runder Rücken kaschiert
Einband:	Gebunden
Autor:	Cremonesi, Llorenç
Auflage:	1st ed. 2020
Hersteller:	Springer International Publishing Springer International Publishing AG Springer Theses
Maße:	241 x 160 x 15 mm
Von/Mit:	Llorenç Cremonesi
Erscheinungsdatum:	25.09.2020
Gewicht:	0,407 kg

Artikel-ID: 118745421