A DWDD disc of 27-Gbit/in2 land-groove recording using a blue laser and side-wall-annealing technique

Jun Sumioka; Yukari Aoki; Kazuoki Hongu; Yasushi Hozumi; Osamu Koyama

doi:10.1117/12.556692

9 September 2004 A DWDD disc of 27-Gbit/in² land groove-recording using a blue laser and side-wall-annealing technique

Jun Sumioka, Yukari Aoki, Kazuoki Hongu, Yasushi Hozumi, Osamu Koyama

Proceedings Volume 5380, Optical Data Storage 2004; (2004) https://doi.org/10.1117/12.556692
Event: Optical Data Storage Topical Meeting, 2004, Monterey, California, United States

Abstract

We realized acceptable read/write performances at a track pitch of 320 nm and a bit length of 75 nm, even with an NA of 0.65 and a wavelength of 405 nm, using side-wall-annealing. In addition to this result, we suggested the possibility of a higher linear density; that is, a jitter value of less than 15% was obtained both on land and in groove at a bit length of 60 nm, which corresponds to an areal density of 34 Gbit/in².

Citation Download Citation

Jun Sumioka, Yukari Aoki, Kazuoki Hongu, Yasushi Hozumi, and Osamu Koyama "A DWDD disc of 27-Gbit/in² land groove-recording using a blue laser and side-wall-annealing technique", Proc. SPIE 5380, Optical Data Storage 2004, (9 September 2004); https://doi.org/10.1117/12.556692

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