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Optics and Laser Science in Electrochemistry

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Abstract

It is well known that electronic instruments, i.e. Ammeter, Potential-meter, have been used for years to measure electrochemical properties of metallic electrodes in aqueous solutions. One of the disadvantages of using electronic instruments for the measurement of electrochemical properties is the invasive nature of those instruments to the electrochemical systems of the metallic electrodes in aqueous solutions. In recent work published by author, it has been shown that holographic interferometry can be used as an optical transducer to characterize the electromagnetic field, i.e., phase and amplitude of the reflected light waves of a surface of a metallic electrode moving further away from the light source, which develops as a result of the electron conduction in metallic electrodes in aqueous solutions due to the anodic reaction, corrosion processes, between the electrodes and the aqueous solutions. The characterization of such electromagnetic field (phase and amplitude of the reflected light waves of a surface) and a mathematical correlation of the electromagnetic field to any electrochemical properties, i.e., corrosion current density, double layer capacitance, alternating current impedance, electrical resistance, and so on, would lead to the measurement of the electrochemical properties by optical interferometry, by the non-invasive method.

© 2005 Optical Society of America

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