A plastic-aluminum bi-layer material was designed to simulate the structure of a compact disk and exert special electromagnetic effect. The material consists of a thin layer of aluminum attaching to a layer of plastic whose outside face that was not in contact with aluminum was built as a rough surface of alternate concave and convex pits. If this material is put in a magnetic field, it will be attracted to the magnet because a dipole moment is induced between the two faces of the plastic by the paramagnetic aluminum layer. It is the author’s hope that this property can be detected by other methods such as optical spectroscopy in order to make it a suitable decoding technique for reading the data on compact disks with increased capacity.

Electromagnetic property of a plastic-aluminum bi-layer material and its potential application in data decoding for compact disks

254th National Meeting (2017)

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