Optical properties of gas-evaporated metal particles: Effects of a fractal structure
- 1 July 1987
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 62 (1) , 258-265
- https://doi.org/10.1063/1.339138
Abstract
Ultrafine metal particles produced by evaporation in an inert gas connect into large clusters that can be described by a fractal dimension at length scales less than a correlation length. An effective medium theory for fractal structures is developed for the case where both the particles and the surrounding medium percolate. A structural parameter which can be related to the fractal dimension is present in the theory. Comparisons to experimental results on the optical properties of gas-evaporated coatings show very good agreement for the case of oxide-coated metal particles. For electrically conducting gold blacks the shapes of theoretical and experimental curves are in qualitative agreement.This publication has 58 references indexed in Scilit:
- Infrared reflection properties of five types of black coating for radiometric detectorsJournal of Physics E: Scientific Instruments, 1985
- Rigorous bounds for the complex dielectric constant of a two-component compositeAnnals of Physics, 1982
- Lattice defects in small metallic particles and their influence on size effectsZeitschrift für Physik B Condensed Matter, 1978
- Optical properties of ultrafine gold particlesPhysical Review B, 1977
- Selective nature of gold-black depositsJournal of the Optical Society of America, 1976
- Optical Constants of the Noble MetalsPhysical Review B, 1972
- Absolute Values of the Optical Constants of Some Pure MetalsPhysica Scripta, 1971
- Infrared Properties of NiO and CoO and Their Mixed CrystalsJournal of Applied Physics, 1965
- Ultraoptische Eigenschaften von Metallen und mittlere freie Weglänge der LeitungselektronenThe European Physical Journal A, 1954
- The Optical Properties of Metallic and Crystalline PowdersJournal of the Optical Society of America, 1933