dye polymer recording

[¦dī ′päl·ə·mər ri′kȯrd·iŋ] (computer science) An optical recording technique in which dyed plastic layers are used as the recording medium.

dye polymer recording

An optical recording technique that uses dyed plastic layers as the recording medium. WORM disks typically use a single dye polymer layer. Erasable disks use two layers: a top retention layer and a bottom expansion layer. A bit is written by shining a laser through the retention layer onto the expansion layer, which heats the area and forms a bump that expands into the retention layer. The retention layer bumps are the actual bits read by the unit. To erase a bit, a laser with a different wavelength strikes the retention layer, and the bump subsides.

单词	dye polymer recording
释义	dye polymer recording dye polymer recording [¦dī ′päl·ə·mər ri′kȯrd·iŋ] (computer science) An optical recording technique in which dyed plastic layers are used as the recording medium. dye polymer recording An optical recording technique that uses dyed plastic layers as the recording medium. WORM disks typically use a single dye polymer layer. Erasable disks use two layers: a top retention layer and a bottom expansion layer. A bit is written by shining a laser through the retention layer onto the expansion layer, which heats the area and forms a bump that expands into the retention layer. The retention layer bumps are the actual bits read by the unit. To erase a bit, a laser with a different wavelength strikes the retention layer, and the bump subsides.
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