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Three-Dimensional Magneto-Optical Recording

  • Akiyoshi Itoh (a1)


In this report, the newly developed three-dimensional magneto-optical (MO) recording scheme and the experimental results are reported. A part of this work has been done as the national project of 3D-MO (3-dimensional MO) project. It started at September 1998 and ended March 2002 as a part of the national project “Nanometer-Scale Optical High Density Disk Storage System” and aimed at achieving 100 Gb/in2 in storage density. Three-dimensional MO recording is one of the prosperous candidates of next generation ultra high density recording. Magnetic amplifying MO system (MAMMOS) is employed for achieving the novel three-dimensional MO recording. Double-MAMMOS scheme consists of 2-recording layers of differing compensation temperature (Tcomp ) and one readout layer was proposed and discussed.

With write/read test it is succeeded to show the results corresponding to a 100 Gb/in2 (50 Gb/in2 × 2) recording density. We also proposed and showed results of simulations of a new type of Double-MAMMOS in which the recording layers can hold quadri-valued information by single writing process.



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1. Awano, H., Ohnuki, S., Shirai, H., and Ohta, N.: Appl. Phys. Lett., 69, 4257 (1996).
2. Awano, H. and Ota, N.: ISOM Digest, We–E–02, 52 (2003).
3. Shiratori, T., Fujii, E., Miyaoka, Y., and Hozumi, Y.: J. Magn. Soc. Jpn., 22, Suppl. S2, 4750 (1998).
4. Tani, M., Inoue, K., Sekine, M., Imai, S., Awano, H., Shimazaki, K., and Ota, N.: Trans. Magn. Soc. Japan, 2, 294296 (2002).
5. Nakagawa, K., and Itoh, A.: J. Magn. Soc. Jpn., 20, Suppl. S1, 73 (1996).
6. Shimazaki, K., Yoshihiro, Y., Ishizaki, O., Ohkuni, S., and Ota, N.: J. Magn. Soc. Jpn., 19, Suppl. S1, 429430 (1995).

Three-Dimensional Magneto-Optical Recording

  • Akiyoshi Itoh (a1)


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