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Proceedings Paper

Cover-layer incident near-field recording: toward 4-layer discs using dynamic tilt control
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Paper Abstract

Progress is reported on cover-layer incident Near-Field Recording. Very good recording results are obtained on a CuSi disc demonstrating excellent signal quality with modulation corresponding to the full effective numerical aperture of 1.45. Comparing the Near-Field system with Blu-ray Disc further shows that an extension to at least 4 data layers should be possible. In addition, a method for dynamic tilt control is presented. Controlling the tilt between the solid immersion lens and the disc surface improves the system robustness and relaxes media manufacturing tolerances for a roadmap towards 500 GB capacity on a single-sided, 4-layer disc which is protected by a polymer cover-layer.

Paper Details

Date Published: 22 June 2006
PDF: 10 pages
Proc. SPIE 6282, Optical Data Storage 2006, 62820M (22 June 2006); doi: 10.1117/12.685211
Show Author Affiliations
C. A. Verschuren, Philips Research Labs. (Netherlands)
F. Zijp, Philips Research Labs. (Netherlands)
D. M. Bruls, Philips Research Labs. (Netherlands)
J. I. Lee, Philips Research Labs. (Netherlands)
J. M. A. van den Eerenbeemd, Philips Research Labs. (Netherlands)
K. Saito, Sony Corp. (Japan)
T. Ishimoto, Sony Corp. (Japan)


Published in SPIE Proceedings Vol. 6282:
Optical Data Storage 2006
Ryuichi Katayama; Tuviah E. Schlesinger, Editor(s)

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