| 二维非线性时域有限差分法分析微孔激光器出射光的近场特性 |
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| 引用本文： | 焦小瑾,鲁拥华,明海.二维非线性时域有限差分法分析微孔激光器出射光的近场特性[J].中国激光,2003,30(7):619-623. |
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| 作者姓名： | 焦小瑾 鲁拥华 明海 |
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| 作者单位： | 中国科学技术大学物理系,安徽,合肥,230026 |
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| 基金项目： | 国家自然科学基金(19974042)，国家重大基础研究项目No.973(G1999033002) |
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| 摘 要： | 微孔激光器(VSAL)作为应用于近场光存储系统中的一种新型光源,它的出射光斑的近场特性对于近场光存储是十分重要的。运用二维非线性时域有限差分法(2D-NL-FDTD)分析VSAL出射端即微孔金属膜的近场光学性质,模拟计算了不同参数的微孔金属膜的光强近场分布,对所得结果加以分析,从光学性质的角度,讨论其在近场光存储中的应用,并给出反映其近场光学特性的相关数据。
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| 关 键 词： | 信息光学 近场光存储 二维非线性时域有限差分法 微孔激光器 |
| 收稿时间： | 2002/4/3 |
Near-field Analysis of the Output Light of the VSAL for Near-filed Optical Storage with 2D-NL-FDTD Method |
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| JIAO Xiao-jin,LU Yong-hua,MING Hai.Near-field Analysis of the Output Light of the VSAL for Near-filed Optical Storage with 2D-NL-FDTD Method[J].Chinese Journal of Lasers,2003,30(7):619-623. |
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| Authors: | JIAO Xiao-jin LU Yong-hua MING Hai |
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| Abstract: | The very small aperture laser (VSAL) is a important light source used in the near-field optical storage system. So it is necessary for studying the near-field property of VSAL s output light. As the output region of the VSAL. the optical characters and the intensity distribution in the near-field of the metal film with micro-aperture have been numerical simulated using two dimension nonlinear FDTD (2D-NL-FDTD) method. Through analyzing the results from the viewpoint of the optics, the possible application in the near-field optical recording have been discussed, and some data indicating the near-field optical characters of the output light have been given. |
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| Keywords: | information optics near-field optical storage 2D-NL-FDTD method VSAL |
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