Phase-Change Media for High-Numerical-Aperture and Blue-Wavelength Recording

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概要

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• We have studied the feasibility of doped eutectic SbTe alloys for practical application in digital video recording (DVR) rewritable phase-change media for high-numerical-aperture ($\text{NA}=0.85$) and blue-wavelength ($\lambda=405$ nm) recording. Remaining issues such as thermal cross-erase in land/groove recording and the thermal stability of recorded amorphous marks have been investigated and resolved. This work has resulted in the realisation of 22.5 GB phase-change media complying with the DVR blue format. The future of doped eutectic SbTe alloys in the phase-change recording-speed race is also promising, as the crystallisation speed and archival life stability can be optimised more or less independently by tuning the Sb/Te atomic ratio and adding Ge, respectively. We have demonstrated that a user data transfer rate of 70 Mbit/s (DVR double speed) is within reach using our current phase-change composition, and are expecting to realise data rates of over 100 Mbit/s in the near future.

• 2001-03-30

著者

• UBBENS Igolt

  Philips Optical Disc Technology Centre

• Dekker Martijn

  Philips Research Laboratories

• Borg Herman

  Philips Optical Disc Technology Centre. Glaslaan

• RIJPERS Jan

  Philips Research Laboratories

• KUIJPER Maarten

  Philips Optical Storage

• Lankhorst Martijn

  Philips Research Laboratories

• Dekker Martijn

  Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands

• Schijndel Mark

  Philips Research Laboratories

• Schijndel Mark

  Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands

• Zhou Guofu

  Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands

• Lankhorst Martijn

  Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands

• Borg Herman

  Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands

• Rijpers Jan

  Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands

関連論文

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• Thermal Cross-Erase Issues in High-Data-Density Phase-Change Recording
• Prospects of Doped Sb-Te Phase-Change Materials for High-Speed Recording
• Development of Recording Stacks for a Rewritable Dual-Layer Optical Disc
• 34 GB Multilevel-Enabled Rewritable System Using Blue Laser and High-Numeric Aperture Optics
• Phase-Change Media for High-Numerical-Aperture and Blue-Wavelength Recording
• High-Speed $16\times$ Digital Versatile Disk Dye Recording
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• 34 GB Multilevel-Enabled Rewritable System Using Blue Laser and High-Numeric Aperture Optics
• Prospects of Doped Sb–Te Phase-Change Materials for High-Speed Recording
• Determination of the Crystallisation Kinetics of Fast-Growth Phase-Change Materials for Mark-Formation Prediction

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