A simple ac photometric method for measuring complex Kerr Magnetooptic coefficients.
A method is described for measuring the amplitude and phase of the complex Kerr magnetooptic coefficients. A magnetic metal surface to be measured is switched between its magnetic states at an ac rate, thereby modulating a reflected light beam. By measuring the modulation depth with a synchronous detector and one angle, the two quantities above are determined. The method requires no precision optical equipment as is needed with polarimetric techniques.
Buhrer
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General Telephone and Electronics Laboratories,Inc., Bayside, New York, USA.