本发明涉及高数据密度光记录介质(20)。
The present invention relates to a high data density optical recording medium (20).
光记录介质，再现装置，以及记录与再现装置。
Optical recording medium, reproducing device, and recording reproducing device.
近年来我们合成了一系列近红外吸收多甲川染料，其中某些染料可以在红外照相、染料激光和光记录介质中使用。
A series of near infrared polymethine dyes have been synthesized. Some of these dyes were used in infrared photography, dye lasers and optical recording medium.
因此传统的磁光记录介质-稀土金属与过渡组金属的合金就表现出局限性，因为这种材料在短波长范围的磁光效应很小。
So the conventional magneto-optical recording median, rare earth-transition metal (Re-Tm) alloys, is limited, because of its small Kerr rotation in the region of short wavelength.
因此传统的磁光记录介质-稀土金属与过渡组金属的合金就表现出局限性，因为这种材料在短波长范围的磁光效应很小。
So the conventional magneto-optical recording median, rare earth-transition metal (Re-Tm) alloys, is limited, because of its small Kerr rotation in the region of short wavelength.
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