30 July 1997 Blue wavelength magnetic superresolution
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Proceedings Volume 3109, Optical Data Storage 1997 Topical Meeting; (1997) https://doi.org/10.1117/12.280697
Event: Optical Data Storage Topical Meeting '97, 1997, Tucson, AZ, United States
Abstract
Tri-layer magnetic super resolution (MSR) media was designed and fabricated for use with center aperture detection. Because short wavelength recording will be essential in achieving ultra-high density disks, the media was tested on a blue light (488 nm) magneto-optic spin stand to evaluate its MSR performance. A single layer TbFeCo disk was also prepared as a standard. Since the MSR disk forms an effective read-out aperture smaller than the diffraction limited spot size, it was observed that the tri-layer disk yielded larger carrier-to-noise ratio than the conventional TbFeCo disk for sub-micrometer mark lengths as small as 0.2 micrometers.
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S. E. Kabakoff, S. E. Kabakoff, Duane C. Karns, Duane C. Karns, Mark H. Kryder, Mark H. Kryder, } "Blue wavelength magnetic superresolution", Proc. SPIE 3109, Optical Data Storage 1997 Topical Meeting, (30 July 1997); doi: 10.1117/12.280697; https://doi.org/10.1117/12.280697
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