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2 June 1988 High Performance Magneto-Optical Disk Using A New Plastic Substrate
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Proceedings Volume 0899, Optical Storage Technology and Applications; (1988) https://doi.org/10.1117/12.944621
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States
Abstract
To realize high data rate and high reliability 5.25 inch Magneto-Optical(MO) disks, suitable materials for a tri-layer structure(substrate/Kerr enhancement layer/magnetic layer/protective layer) and substrates were studied. By optimizing the composition of TbFeCo film, micron-size and regular-shaped recorded domains were obtained. SiNx film showed enough Kerr rotation enhancement and good protectivity to be used as an enhancement layer and a protective layer for a TbFeCo magnetic film. Those films were constructed on newly developed plastic substrates of photocurable casting resin(PHC) which have as low retardation and as high heat-resistance as glass/2p(photo-polymerization) substrates. MO disks with the tri-layer structure on PHC showed high reliability even in severe circumstances.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Toshio Niihara, Shinkichi Horigome, Ryoichi Sudou, Hiroyuki Suzuki, Masafumi Yoshihiro, and Norio Ohta "High Performance Magneto-Optical Disk Using A New Plastic Substrate", Proc. SPIE 0899, Optical Storage Technology and Applications, (2 June 1988); https://doi.org/10.1117/12.944621
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