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Optical Engineering

Change in data marks and groove structures of compact recordable disks in response to a high power laser beam
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Paper Abstract

Changes in data marks and groove structures are examined when a high power laser beam (>0.5 W) is focused on compact disk recordable (CD-R) data layers. Observations are recorded as a function of exposure condition and the type of dye used in the recording layer. All samples experience a decrease in the depths of data mark features and the pregroove modulations on exposure. Data marks on cyanine- and azo-dye disks become optically invisible after exposure, while data marks on phthalocyanine-dye disks remain visible, even after high-power exposure. Also, phthalocyanine-dye disks show interesting phenomena, including mixture of the dye and the substrate material during recording and contrast reversal of the marks.

Paper Details

Date Published: 1 June 2006
PDF: 5 pages
Opt. Eng. 45(6) 064302 doi: 10.1117/1.2214714
Published in: Optical Engineering Volume 45, Issue 6
Show Author Affiliations
Taeyoung J. Choi, The Univ. of Arizona (United States)
Thomas D. Milster, The Univ. of Arizona (United States)


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