| Read—out of a read—only super—resolution optical disc with a Si mask |
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| 引用本文： | 魏劲松,阮昊,施宏仁,干福熹. Read—out of a read—only super—resolution optical disc with a Si mask[J]. 中国物理, 2002, 11(10): 1073-1075. DOI: 10.1088/1009-1963/11/10/319 |
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| 作者姓名： | 魏劲松 阮昊 施宏仁 干福熹 |
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| 作者单位： | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 59832060) and by the State Key Development Programme for Basic Research of China (Grant No 19990330). |
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| 摘 要： | A novel read-only super-resolution optical disc structure (substrate/mask layer/dielectric layer) is proposed in this paper. By using a Si thin film as the mask layer, the recording pits with a diameter 380nm and a depth 50nm are read out on the dynamic measuring equipment; the laser wavelength α is 632.8nm and the numerical aperture is 0.40. In the course of reproduction, the laser power is 5mW and the rotation velocity of the disc is 4m·s-1. The optimum thickness of the Si thin film is 18nm and the signal-to-noise ratio is 32dB.
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| 关 键 词： | 光存储盘 硅薄膜 超分辨率 |
| 收稿时间： | 2002-05-30 |
Read-out of a read-only super-resolution optical disc with a Si mask |
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| Wei Jin-Song,Ruan Hao,Shi Hong-Ren and Gan Fu-Xi. Read-out of a read-only super-resolution optical disc with a Si mask[J]. Chinese Physics, 2002, 11(10): 1073-1075. DOI: 10.1088/1009-1963/11/10/319 |
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| Authors: | Wei Jin-Song Ruan Hao Shi Hong-Ren Gan Fu-Xi |
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| Affiliation: | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | A novel read-only super-resolution optical disc structure (substrate/mask layer/dielectric layer) is proposed in this paper. By using a Si thin film as the mask layer, the recording pits with a diameter 380nm and a depth 50nm are read out on the dynamic measuring equipment; the laser wavelength α is 632.8nm and the numerical aperture is 0.40. In the course of reproduction, the laser power is 5mW and the rotation velocity of the disc is 4m·s-1. The optimum thickness of the Si thin film is 18nm and the signal-to-noise ratio is 32dB. |
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| Keywords: | super-resolution optical storage Si thin film |
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