OPTIMUM DISK STRUCTURES AND ENERGETICS OF DOMAIN FORMATION IN MAGNETO-OPTICAL RECORDING.

Masud Mansuripur, G. A N Connell, D. Treves

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A quadrilayer magnetooptical device in which the magnetic medium is sandwiched between two dielectric layers and supported by a reflecting substrate is shown to have desirable characterisitics for the storage and retrieval of information. The quadrilayer exhibits a readout snr of about 8 (3) db over the readout from bare (coated) bulk material. At the same time, the writing sensitivity is matched to the available laser power for recording, thus permitting high levels of read power without loss in resolution. Energetics of domain formation in a ferrimagnetic material during a typical write cycle is examined. Contributions from different sources of energy are compared and the role of coercivity in the formation and stability of domains is discussed.

Original languageEnglish (US)
Pages (from-to)1241-1243
Number of pages3
JournalIEEE Transactions on Magnetics
VolumeMag-18
Issue number6
StatePublished - Nov 1982
Externally publishedYes

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Magnetooptical devices
Ferrimagnetic materials
Optical recording
Coercive force
readout
ferrimagnetic materials
recording
Lasers
power loss
Substrates
retrieval
coercivity
cycles
sensitivity
lasers
energy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

OPTIMUM DISK STRUCTURES AND ENERGETICS OF DOMAIN FORMATION IN MAGNETO-OPTICAL RECORDING. / Mansuripur, Masud; Connell, G. A N; Treves, D.

In: IEEE Transactions on Magnetics, Vol. Mag-18, No. 6, 11.1982, p. 1241-1243.

Research output: Contribution to journalArticle

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