Abstract
The application of confocal, non-confocal, and magnetooptic phase contrast readout techniques to magnetooptic recording is described. Experimental investigations using a scanning laser microscope indicate that the introduction of a confocal aperture into the detector space can sharpen the system step response, reduce intersymbol interference, and provide an in-built focus error signal. It is concluded that the use of magnetooptic phase contrast provides a further alternative to conventional polar Kerr readout and introduces the possibility of particularly simple replay optics.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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