Read-out of a read-only super-resolution optical disc with a Si mask

doi:10.1088/1009-1963/11/10/319

中国物理B ›› 2002, Vol. 11 ›› Issue (10): 1073-1075.doi: 10.1088/1009-1963/11/10/319

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Read-out of a read-only super-resolution optical disc with a Si mask

魏劲松, 阮昊, 施宏仁, 干福熹

Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

收稿日期:2002-05-30 修回日期:2002-06-15 出版日期:2005-06-12 发布日期:2005-06-12
基金资助:
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).

Read-out of a read-only super-resolution optical disc with a Si mask

Wei Jin-Song (魏劲松), Ruan Hao (阮昊), Shi Hong-Ren (施宏仁), Gan Fu-Xi (干福熹)

Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

Received:2002-05-30 Revised:2002-06-15 Online:2005-06-12 Published:2005-06-12
Supported by:
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).

摘要/Abstract

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.

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.

Key words: super-resolution, optical storage, Si thin film

中图分类号: (Optical storage systems, optical disks)

42.79.Vb

75.50.Ss (Magnetic recording materials)

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B, 2002, 11(10): 1073-1075.

Wei Jin-Song (魏劲松), Ruan Hao (阮昊), Shi Hong-Ren (施宏仁), Gan Fu-Xi (干福熹). Read-out of a read-only super-resolution optical disc with a Si mask[J]. Chinese Physics, 2002, 11(10): 1073-1075.

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Read-out of a read-only super-resolution optical disc with a Si mask

Read-out of a read-only super-resolution optical disc with a Si mask

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