Abstrcrcz-Thispaper describes the application of confocal, non-confd and magnetodptic pbase contrast readout techniques to m a g n~t o~p t k recording. Experimental measurements obtaiied using a scanning laser microscope indicate that confocal readout has a sbarper step response, lower intersymbol interference and an in-built focus error capability.
A scanning laser microscope (SLM) has been built which is capable of observing magnetic structure via ‘‘conventional’’ Kerr imaging techniques and a ‘‘novel’’ magneto-optic phase contrast approach. This latter contrast mode highlights magnetic transitions, rather than domains themselves. In this paper we present results of observations in TbFeCo samples using this phase contrast technique and assess its possible application as a read-out mechanism for magneto-optic recording systems.
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