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

C. A. Verschuren; F. Zijp; D. M. Bruls; J. I. Lee; J. M. A. van den Eerenbeemd; K. Saito; T. Ishimoto

doi:10.1117/12.685211

22 June 2006 Cover-layer incident near-field recording: toward 4-layer discs using dynamic tilt control

C. A. Verschuren, F. Zijp, D. M. Bruls, J. I. Lee, J. M. A. van den Eerenbeemd, K. Saito, T. Ishimoto

Proceedings Volume 6282, Optical Data Storage 2006; 62820M (2006) https://doi.org/10.1117/12.685211
Event: Optical Data Storage 2006, 2006, Montréal, Canada

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.

Citation Download Citation

C. A. Verschuren, F. Zijp, D. M. Bruls, J. I. Lee, J. M. A. van den Eerenbeemd, K. Saito, and T. Ishimoto "Cover-layer incident near-field recording: toward 4-layer discs using dynamic tilt control", Proc. SPIE 6282, Optical Data Storage 2006, 62820M (22 June 2006); https://doi.org/10.1117/12.685211

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