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- Title
Study of the optical response of phase-change recording layer with zinc oxide nanostructured thin film.
- Authors
Kao, T. S.; Fu, Y. H.; Hsu, H. W.; Tsai, D. P.
- Abstract
Recently, use of nanostructured materials as a near-field optical active layer has attracted a lot of interest. The non-linear optical properties and strong enhancements of metallic oxide nanostructured thin films are key functions in applications of promising nanophotonics. For the importance of ultra-high density optical data storage, we continue investigating the ultra-high density recording property of near-field optical disk consisting of zinc oxide (ZnO x) nanostructured thin film. A carrier-to-noise ratio above 38 dB at a recording mark size of 100 nm can be obtained in the ZnO x near-field optical disk by a DVD driver tester directly. In this article, we use an optical pump-probe system (static media tester) to measure the optical response of a phase-change recording layer (Ge2Sb2Te5) and demonstrate the high contrast of optical recording with a ZnO x nanostructured thin film in short pulse durations. Also, we investigate the dependence of writing power and the optical response in conventional re-writable recording layers and the phase-change material with ZnO x nanostructured thin film.
- Subjects
ZINC oxide thin films; THIN films; OPTICAL properties; NANOSTRUCTURED materials; METALLIC oxides; OPTICAL disks
- Publication
Journal of Microscopy, 2008, Vol 229, p561
- ISSN
0022-2720
- Publication type
Article
- DOI
10.1111/j.1365-2818.2008.01944.x