Abstract
Conventional optical recording media, such as write once (WO), magnetooptical (MO), and phase change, use the thermal energy of irradiated laser beams. Therefore, it is difficult for thermal-mode media to record in very short pulse duration on fast rotated optical disks because of a thermal delay. Added to this limitation, recorded mark sizes are modulated by thermal diffusion on a substrate for a successive light irradiation.
© 1989 Optical Society of America
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