Optical Review
Print ISSN : 1340-6000
ISSN-L : 1340-6000
Analysis of Signal-to-Noise Ratio in Photochromic Super-Resolution Readout
Tsuyoshi TSUJIOKAMinoru KUMEMasahiro IRIE
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1997 年 4 巻 6 号 p. 655-659

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The signal-to-noise ratio (SNR) in the photochromic super-resolution readout of optical disks was theoretically analyzed. The shot noise limited SNR, such as that in magnetooptical disks, was improved only for the short recorded mark. However, the media noise limited SNR, such as that in phase change disks, was greatly improved for both short and long recorded marks.
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© 1997 by the Optical Society of Japan
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