Laser beam mastering of high-density d=1 RLL code ROM disc

Tetsuya Kondo; Eiji Nakagawa; Takashi Tsurukubo; Takashi Ohgo; Toshiya Saito

doi:10.1117/12.532751

16 September 2003 Laser beam mastering of high-density d=1 RLL code ROM disc

Tetsuya Kondo, Eiji Nakagawa, Takashi Tsurukubo, Takashi Ohgo, Toshiya Saito

Proceedings Volume 5069, Optical Data Storage 2003; (2003) https://doi.org/10.1117/12.532751
Event: Optical Data Storage 2003, 2003, Vancouver, Canada

Abstract

The paper describes a novel laser beam mastering system with technologies of direct focus servo, high contrast photoresist material, recording signal compensation. Although the optics consists of conventional 266 nm laser with numerical aperture (NA) 0.9 objective lens, it successfully realizes an over 20 Gbytes capacity Read-Only-Memory (ROM) disc.

Citation Download Citation

Tetsuya Kondo, Eiji Nakagawa, Takashi Tsurukubo, Takashi Ohgo, and Toshiya Saito "Laser beam mastering of high-density d=1 RLL code ROM disc", Proc. SPIE 5069, Optical Data Storage 2003, (16 September 2003); https://doi.org/10.1117/12.532751

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