Discrete Time Model for Bond Detection in Thin Layer Materials
M.G.S. Alia, N.Z. Elsayed a and G.S. Hassan b
aPhysics Department, Faculty of Science, Minia University, Minia, Egypt
bPhysics Department, Assiut University, 71516 Assiut, Egypt
Received: January 29, 2010; Revised version: January 29, 2012; In final form: February 22, 2012
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Recursive equations were developed and introduced that enable to calculate the transmitted waves through a multiplicity of layers. The calculations are carried out using z-transform technique. The layers are considered lossless and have parallel interface, which are at normal incidence to the field. The multilayered structures are constructed of three aluminum plates connected together with epoxy as the adhesive layers. The method has been successfully used to detect small changes in the thickness of adhesive layers.
DOI: 10.12693/APhysPolA.122.82
PACS numbers: 43.60.+d