中国激光, 2002, 29 (4): 366, 网络出版: 2006-08-08   

只读式超分辨光盘的膜层设计和分析

Calculation and Analysis of Multilayers for the Read-only Super-resolution Optical Disks
作者单位
中国科学院上海光学精密机械研究所,上海,201800
摘要
超分辨技术是一种无需减小记录波长或增大数值孔径而提高存储密度的方法.Ge-Sb-Te是一种良好的相变光存储材料,在超分辨光盘中可作为掩膜.利用多层膜反射率的矩阵法计算了掩膜为Ge2Sb2Te5薄膜的超分辨只读式光盘的光学参数与各膜层厚度之间的关系,最后得到了较为理想的膜层厚度匹配.采用磁控溅射法制备了只读式超分辨光盘,测量了光盘的光学性质.
Abstract
Super resolution, which allows the readout of information beyond the optical cutoff frequency given by 2NA/λ, is an alternate way to increase the recording density without the need to directly reduce the spot size by increasing NA and reducing λ. Ge-Sb-Te is a kind of phase-change optical recording material with good performance. It may used to be mask layer in the super-resolution optical disks. In this paper, the relation of the optical parameters (reflectivity and R m/R c) and the film thickness of the structure of the multi-layers of read-only super-resolution optical disks were studied with method of eigenmatrix of multi-layer films. The ideal result of thickness for each layer is given. The read-only super-resolution optical disks were fabricated by RF magnetron sputtering technology. The optical properties were measured.
参考文献

[1] W.J.Kozlovshy,A.G.Dewey,A.Juliana et al..Optical recording in the blue using a frequency-doubled diode laser [C].SPIE,1992,1663:410~415

[2] . M.Mansfield,W.R.Studenmund,G.S.Kino et al..High-numerical-aperture lens system for optical storage[J]. Opt.Lettt., 1993, 18(4): 305-307.

[3] . .Irister-magneto-optical disk for magnetically induced superresolution[J]. Proc.IEEE, 1994, 82(4): 544-553.

[4] Kouichi Yasuda,Masumi Ono,Katsuhisa Aratani et al..Premastered optical disk by superresolution [J].Jpn.J.Appl.Phys.,1993,32(11B):5210~5213

[5] . Read-only optical disk with superresolution[J]. Appl. Phys. Lett., 1994, 64(24): 3225-3227.

[6] Toshimichi Shintani,Motoyasu Terao,Hiroki Yamamoto et al..A new super-resolution film applicable to read-only and rewritable optical disks [J].Jpn.J.Appl.Phys.,1999,38(3B):1656~1660

[7] Tsuyoshi Tsujioka,Minoru Kume,Yukio Horikawa et al..Super-resolution disk with a photochromic mask layer [J].Jpn.J.Appl.Phys.,1997,36(1B):526~529

[8] . Nobukuni,M.Takashima,T.Ohno et al..Microstructural changes in GeSbTe film during repetitious overwriting in phase-change optical recording[J]. J.Appl.Phys., 1995, 78(12): 6980-6985.

[9] Ken-ichi Uchino,Ken-ichi Takada,Takashi Ohno et al..High-density pulse width modulation recording and rewritable capability in GeSbTe phase-change system using visible laser beam at low linear velocity [J]. Jpn. J. Appl. Phys., 1993,32(11B):5354~5360

[10] Li Jinyan,Ruan Hao,Gan Fuxi.Effect of film thickness of optical properties of AgInSbTe phase-change films [J].Acta Optica Sinica (光学学报),2001,21(8):952~956 (in Chinese)

李进延, 阮昊, 干福熹. 只读式超分辨光盘的膜层设计和分析[J]. 中国激光, 2002, 29(4): 366. 李进延, 阮昊, 干福熹. Calculation and Analysis of Multilayers for the Read-only Super-resolution Optical Disks[J]. Chinese Journal of Lasers, 2002, 29(4): 366.

本文已被 4 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!