Towards a Multi-Layer Near-Field Recording System: Dual-Layer Recording Results
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概要
- 論文の詳細を見る
We advocate the use of a polymeric cover layer for protecting the data layer and the tip of the solid immersion lens in near-field optical recording system. With a cover on top of the data layer, the numerical aperture (NA) of the objective lens is limited to the refractive index of the cover material. This means that the maximum attainable NA of cover-incident near-field systems and therefore the maximum achievable storage density is lower compared to that for first surface systems. This lower storage capacity per layer can be more than compensated for by using multiple data layers which is not possible in first-surface systems with bare discs. In this paper we present first experimental results for near-field recording with a solid immersion lens that focuses through a cover layer and a spacer layer onto a data layer, as in a dual-layer near-field disc.
- 2007-06-30
著者
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Van Den
Philips Res. Eindhoven Nld
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VERSCHUREN Coen
Philips Research
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ZIJP Ferry
Philips Research
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Bruls Dominique
Philips Research Laboratories
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Bruls Dominique
Philips Research Laboratories, High Tech Campus 34, 5656 AE Eindhoven, The Netherlands
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Yin Bin
Philips Research Laboratories, High Tech Campus 34, 5656 AE Eindhoven, The Netherlands
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Zijp Ferry
Philips Research Laboratories, High Tech Campus 34, 5656 AE Eindhoven, The Netherlands
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van den
Philips Research Laboratories, High Tech Campus 34, 5656 AE Eindhoven, The Netherlands
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