Title

Numerical Modeling Of Optical Coatings Using Coupled Dipole Approximation

Abstract

New development of coating technology such as spray and multi-layer coatings and the desire for low basis weight materials challenge the conventional approach of understanding the optics of particle and particle packing. The problem is complex and requires computational tools. Coupled Dipole Approximation (CDA) is a numerical tool for the simulation of scattering of radiation from materials of arbitrary shapes and composition. This technique has been used extensively in modeling the scattering of light from shaped particles [1-3]. We have extended the CDA to model optical properties of slabs of inhomogeneous materials such as optical coatings. This method is based on a modification of the Green's function to take into account the interaction between dipoles located at arbitrary points within the slab. This new method can handle various aspects of the structural morphology including pigment size and composition, spatial distribution as well as surface roughness effects. Our procedure allows an adequate description of both the specular and diffuse reflection of light.

Publication Date

12-19-2008

Publication Title

TAPPI Advanced Coating Fundamentals Symposium Proceedings

Number of Pages

16-21

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

57649116456 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/57649116456

This document is currently not available here.

Share

COinS