中国物理B ›› 2003, Vol. 12 ›› Issue (1): 107-111.doi: 10.1088/1009-1963/12/1/320

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A study on the short-wavelength and high-numerical-aperture phase-change recording

刘 波1, 阮 昊2, 干福熹3   

  1. (1)Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; (2)Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201801, China; (3)Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201802, China
  • 收稿日期:2002-05-29 修回日期:2002-09-12 出版日期:2003-01-20 发布日期:2003-01-20
  • 基金资助:
    Project supported by the Foundation of the Shanghai Applied Physics Centre, and the National Natural Science Foundation of China (Grant No 59832060).

A study on the short-wavelength and high-numerical-aperture phase-change recording

Liu Bo (刘 波), Ruan Hao (阮 昊), Gan Fu-Xi (干福熹)   

  1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2002-05-29 Revised:2002-09-12 Online:2003-01-20 Published:2003-01-20
  • Supported by:
    Project supported by the Foundation of the Shanghai Applied Physics Centre, and the National Natural Science Foundation of China (Grant No 59832060).

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摘要： In this paper, we discuss the phase-change recording at a short-wavelength (514nm) and a high numerical aperture (0.85). Effects of recording power and pulse width on the size of the recording marks are studied. The minimum recording mark with a length of approximately 220nm has been observed. The capacity of about 17GB for a single-layer disc of a 12cm diameter can be obtained. The maximum carrier-to-noise ratio reaches 45dB at a writing power of 13--14mW.

Abstract: In this paper, we discuss the phase-change recording at a short-wavelength (514nm) and a high numerical aperture (0.85). Effects of recording power and pulse width on the size of the recording marks are studied. The minimum recording mark with a length of approximately 220nm has been observed. The capacity of about 17GB for a single-layer disc of a 12cm diameter can be obtained. The maximum carrier-to-noise ratio reaches 45dB at a writing power of 13--14mW.

Key words: phase-change, short-wavelength, high numerical aperture, transmission--electron microscopy

中图分类号:  (Transmission electron microscopy (TEM))

  • 68.37.Lp
42.79.Vb (Optical storage systems, optical disks) 42.79.Ag (Apertures, collimators)