@article{MAKHILLJEAS200721012877, title = {Surface Analysis of Optical Flint Substrate by Multiple Angle Ellipsometric Method}, journal = {Journal of Engineering and Applied Sciences}, volume = {2}, number = {10}, pages = {1519-1523}, year = {2007}, issn = {1816-949x}, doi = {jeasci.2007.1519.1523}, url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2007.1519.1523}, author = {Ai Manallah,M. Bouafia and}, keywords = {Ellipsometry,effective medium,surface roughness,optical testing,polishing}, abstract = {The present research consists in characterizing the surface quality of polished optical glass (LF7) by ellipsometry and use of effective medium model. A correlation between effective roughness layer and ellipsometric measurements has been established as glass fraction f %. Ellipsometric parameters in dependence of polishing time have been measured and treated on the base of the theory of Maxwell-Garnett assuming an effective medium layer of effective thickness de and refractive index ne.} }