 |
 |
Journal articles
Optical response of a hematite coating: ellipsometry data versus Fourier-based computations
Abstract : The optical properties of a hematite-epoxy coating are predicted numerically and compared with el-lipsometry measurements. The highly-heterogeneous dispersion of nanocubic hematite particles in the epoxy resin is simulated using a previously developed two-scales random model. The local anisotropic permittivity tensor of hematite particles, and that of the epoxy, are estimated by ellipsometry measurements carried out on a macroscopic hematite and epoxy samples. Fourier-based methods using a "discrete" Green operator are used to treat complex permittivities. They predict the effective and local electric displacement field in the quasi-static approximation. The former is close to two estimates based on the Hashin-Shtrikman bounds and a self-consistent approximation. Good agreement is found between experimental data and FFT computations in the whole range of the visible spectrum.
Cited literature [32 references]
https://hal-mines-paristech.archives-ouvertes.fr/hal-01232497
Contributor : François Willot Connect in order to contact the contributor
Submitted on : Monday, November 23, 2015 - 3:50:19 PM
Last modification on : Wednesday, November 17, 2021 - 12:31:02 PM
Long-term archiving on: : Wednesday, February 24, 2016 - 1:10:27 PM
Contributor : François Willot Connect in order to contact the contributor
Submitted on : Monday, November 23, 2015 - 3:50:19 PM
Last modification on : Wednesday, November 17, 2021 - 12:31:02 PM
Long-term archiving on: : Wednesday, February 24, 2016 - 1:10:27 PM
File
coukaEtAlASEM.pdf
Files produced by the author(s)