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Super-Resolution Recording by an Organic Photochromic Mask Layer |
| SHI Ming 1;ZHAO Sheng-Min 2;YI Jia-Xiang 1;ZHAO Fu-Qun 1;NIU Li-Hong 1;LI Zhong-Yu 1;ZHANG Fu-Shi 1 |
| 1Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 1000842Lab of Printing & Packaging Material and Technology-Beijing Area Major Laboratory, Beijing Institute of Graphic Communication, Beijing 102600 |
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SHI Ming, ZHAO Sheng-Min, YI Jia-Xiang et al 2007 Chin. Phys. Lett. 24 994-997 |
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Abstract By using the super-resolution near-field structure (super-RENS) method, the super-resolution recording marks are obtained practically by an organic photochromic diarylethene mask layer, under much lower recording laser power of 0.45mW. The size of recording marks is decreased by 60% (from 1.6μm to 0.7μm) for a diarylethene (photo-mode) recording layer by the optical detection method (limited by optical diffraction), or decreased by 97% (from 1600nm to 50nm) for a heptaoxyl copper phthalocyanine (thermo-optical) recording layer, the latter is much smaller than the limitation of optical diffraction. In order to obtain a desirable result, a proper extent of photochemistry reaction in the mask layer is needed. Thus, the super-resolution recording marks can be obtained by adjusting the concentration of
diarylethene in the mask layer, the recording laser power, and the moving speed of the sample disc.
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42.79.Vb
42.70.Ln
42.70.Gi
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Received: 15 September 2006
Published: 26 March 2007
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| PACS: |
42.79.Vb
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(Optical storage systems, optical disks)
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42.70.Ln
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(Holographic recording materials; optical storage media)
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42.70.Gi
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(Light-sensitive materials)
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