| 摘要 |
<p>A magneto-optical disk is provided with a transparent substrate of a disk shape, and a multiple layerd structure which is formed on the substrate and includes a plurality of transparent dielectric films and magnetic recording films which are alternatively layerd. One method of reproducing the magneto-optical disk is enabled, which has the steps of inputting a circularly or elliptically polarized light on the magneto-optical disk, and detecting an intensity change of the light caused by the magneto-optical disk due to the circular dichroism effect thereof, as a reproduced signal. Another method of reproducing the magneto-optical disk is also enabled, which has the steps of inputting a linearly polarized light on the magneto-optical disk, and detecting a rotation change of a polarization plane of the light caused by the magneto-optical disk due to the magnetic Kerr effect, as a reproduced signal. <IMAGE></p> |
