Optical Disk Technology for Permanent and Erasable Memory Applications

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Digital recording on a state-of-the-art magnetic memory is now achieving an area density of 10 mm square for one flux reversal. Use of a defraction-limited laser beam spot applied to an optical memory can reduce the area requirement by a factor of 10 or more. The advent of nonreversible and reversible process optical memories creates the possibility of applying this technique to the design of a high-density, broadcast-quality video recorder. Both processes use tellurium-tellurium oxide on a substrate. A composite video digital recorder with 1300 still-frame capacity on a 20-cm nonreversible process disk is being developed.
Publication Date: 1985-02-01
DOI: 10.5594/J14101
Link: https://doi.org/10.5594/J14101
Author(s): Koichi Sadashige, M. Takenaga

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Koichi Sadashige and M. Takenaga; Optical Disk Technology for Permanent and Erasable Memory Applications, SMPTE Journal ( Volume: 94, Issue: 2, February 1985); SMPTE, 1985. Available at https://doi.org/10.5594/J14101

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Koichi Sadashige and M. Takenaga; Optical Disk Technology for Permanent and Erasable Memory Applications, SMPTE Journal ( Volume: 94, Issue: 2, February 1985); SMPTE, 1985. Available at https://doi.org/10.5594/J14101

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<span class="citation">Koichi Sadashige and M. Takenaga; <cite>Optical Disk Technology for Permanent and Erasable Memory Applications</cite>, SMPTE Journal ( Volume: 94, Issue: 2, February 1985); SMPTE, 1985. Available at <a href="https://doi.org/10.5594/J14101" target="_blank" rel="noopener">https://doi.org/10.5594/J14101</a></span>

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Koichi Sadashige and M. Takenaga; Optical Disk Technology for Permanent and Erasable Memory Applications, SMPTE Journal ( Volume: 94, Issue: 2, February 1985); SMPTE, 1985
doi: 10.5594/J14101
url: https://doi.org/10.5594/J14101

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Koichi Sadashige and M. Takenaga; <cite id="bib-10-5594-j14101">Optical Disk Technology for Permanent and Erasable Memory Applications</cite>, SMPTE Journal ( Volume: 94, Issue: 2, February 1985); SMPTE, 1985
<span class="doi">10.5594/J14101</span>
</li>