Hostname: page-component-745bb68f8f-g4j75 Total loading time: 0 Render date: 2025-01-15T07:15:41.906Z Has data issue: false hasContentIssue false
  • English
  • Français

Key Technology for Ultra Density Optical

Published online by Cambridge University Press:  01 February 2011

Robert E. Somekh  and
Clare E. Davies
Robert E. Somekh
Affiliation:
Plasmon Data Systems Ltd., Whiting Way, Melbourn, Royston, Hertfordshire, SG8 6EN, UK.
Clare E. Davies
Affiliation:
Plasmon Data Systems Ltd., Whiting Way, Melbourn, Royston, Hertfordshire, SG8 6EN, UK.
Get access

Abstract

Ultra Density Optical (UDO) has been designed as the Phase Change successor to 5¼-inch Magneto Optic data storage products, with a UDO road map spanning three product generations leading to 120GB capacity. First generation UDO will utilise 405nm wavelength, 0.7NA drive optics with 100 micron cover layer media construction in a robust, double-sided cartridged format with 30GB capacity. There will be two types of UDO, both aimed at the professional market: UDO Write Once for high density, high data rate, archival data storage applications, and high cyclability UDO Rewritable. The features of UDO and the underlying Media Engineering optimisation strategies are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 803: Symposia GG/HH – Advanced Characterization Techniques for Data Storage Materials – Phase Change and Nonmagnetic Materials for Data Storage , 2003 , HH4.5
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1 Verboom, H.J., “Selective Inter-Symbol-Interference Cancellation (SISIC) for high density optical recording using a d=1 channel mode”, in Optical Data Storage 2001, Proceedings of SPIE 4342 (2001), pp375–384 Google Scholar
2 Cushman, T.R., Farruggia, G., Olin, G. R.,. Primerano, B., Tyan, Y., Vazan, F., “Write-once read-many times optical recording element, useful in phase change optical recording, comprises substrate and phase change recording layer”, EP-1283522 A1Google Scholar
3 Iwasaki, H., Ide, Y., Harigaya, M., Kageyama, Y. and Fujimara, I., “Completely erasable phase change optical disk”, Jpn. J. Appl. Phys. Vol 31, Part 1, No. 2B, (1992) pp. 461–465 Google Scholar
4 Zhou, G. F. and Jacobs, B.A.J., “High Performance Media for Phase Change Optical Recording”, Jpn. J. Appl. Phys. Vol 38 (1999), pp. 1625–1628 Google Scholar
5 Price, S.J., Greer, A.L. and Davies, C.E., “Microstructural studies of direct overwrite (DOW) Ag-In-Sb-Te phase change optical recording media”, in Optical Data Storage 2000, Proceedings of SPIE Vol 4090 (2000) pp. 122–130 Google Scholar
6 Balasubramanian, K., Weber, T., O'Neill, M., Horie, M., Kiyono, K., and Hasizume, T., “Rewritable MultiLevel Recording using Blue Laser and Growth-Dominant Phase-Change Optical Discs”, in Optical Data Storage 2001, Proceedings of SPIE Vol 4342 (2001), pp160–163 Google Scholar
7 Kojima, R. and Yamada, N., “Acceleration of Crystallisation Speed by Sn addition to Ge-Sb-Te Phase Change recording material, Jpn. J. Appl. Phys. Vol 40, (2001), pp. 5930–5937 Google Scholar
8 Horie, M., Ohno, T., Nobukuni, N., Kiyono, K., Hashizume, T. and Mizuno, M., “Material Characterization and application of Eutectic SbTe based Phase-Change Optical Recording Media Proc SPIE Vol 4342, 2002, pp. 76–87 Google Scholar
9 Nishi, Y., Kando, H. and Terao, M., “Simulation of Recrystallization in Phase Change Recording Materials”, Jpn. J. Appl. Phys. Vol 41 (2002), pp. 631–635 Google Scholar