Monitoring the thickness of soap films by polarization homodyne interferometry

Year: 1996

Authors: Greco V., Molesini G.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: An interferometric technique to monitor accurately the thinning process of vertical soap films during drainage is described. The approach is based on a four channel homodyne configuration in polarized light, allowing for high accuracy and fast acquisition rate. Computing algorithms taking into account the layered structure of the film are developed. Measurements on an aqueous solution of sodium dodecyl sulphate are presented.


Volume: 7 (1)      Pages from: 96  to: 101

KeyWords: polarization homodyne; interferometry; optical metrology
DOI: 10.1088/0957-0233/7/1/013

Citations: 8
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