Abstract
We have developed the large capacity Light Intensity Modulation Direct Over Write (LIMDOW) Magneto Optical (MO)media by adding the Magnetically induced Super Resolution (MSR) function to the conventional LIMDOW. We selected the magneto static coupling Center Aperture Detection (CAD) from the various kinds of MSR because of its good suitability to the conventional LIMDOW. This newly developed CAD-LIMDOW realizes high performance of both MSR and DOW function. The recording density of 2.7Gbit/inch2 has been obtained with sufficient power margin by using a land/groove substrate at the condition of 680nm wavelength LD and NA=0.55. It means that 3.5Gbit/inch2 density is probable by using the optical head with wavelength of 650nm and NA=0.6.
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