超高密度光磁気記録用磁区拡大再生技術

概要

論文の詳細を見る
An amplified magneto-optical signal readout using a dynamic domain expansion effect was proposed and experimentally confirmed. Crescent-shaped domains 0.08μm in length were expanded on the expansion readout layer copied from the recording layer. An amplified readout signal up to five times larger than that of a conventional disk was achieved. From the results of the expansion readout, namely, a 0.08-μm domain length and a 0.4-μm domain width, the areal recording density can be estimated at about 20 Gbit/in^2 with a 680-nm-wavelength laser and at about 60 Gbit/in^2 with a 406-nm-wavelength laser.
社団法人日本磁気学会の論文
1997-10-01