| Numerical Analysis and Comparison of Three Metal-Oxide-Type Super-Resolution Near Field Structures |
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| 引用本文： | 瞿青玲 王阳 干福熹. Numerical Analysis and Comparison of Three Metal-Oxide-Type Super-Resolution Near Field Structures[J]. 中国物理快报, 2006, 23(12): 3363-3365 |
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| 作者姓名： | 瞿青玲 王阳 干福熹 |
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| 作者单位： | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 60207005, 60490290, 60507009, and 50672108 the Science and Technology Committee of Shanghai under Grant No 06DJ14007. |
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| 摘 要： | Based on the Fresnel-Kirchhoff diffraction theory, we build up a Gaussian diffraction model of metal-oxide-type super-resolution near field structure （super-liENS）, which can describe far field optical properties. The spectral contrast induced by refractive index and the structural changes in AgOg, PtOx and PdOz thin films, which are the key functional layers in super-RENS, are studied by using this model. Comparison results indicate that the spectral contrast depends intensively on the laser-induced distribution and change of the refractive index in the metal-oxide films. The readout mechanism of the metal-oxide-type super-RENS optical disc is further clarified. This Gaussian diffraction model can be used as a simple and effective method for choosing proper active materials in super-RENS.
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| 关 键 词： | 超分辨近场结构 金属氧化物型 数值分析 Gaussian衍射模型 |
| 收稿时间： | 2006-09-04 |
| 修稿时间： | 2006-09-04 |
Numerical Analysis and Comparison of Three Metal-Oxide-Type Super-Resolution Near Field Structures |
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| QU Qing-Ling,WANG Yang,GAN Fu-Xi. Numerical Analysis and Comparison of Three Metal-Oxide-Type Super-Resolution Near Field Structures[J]. Chinese Physics Letters, 2006, 23(12): 3363-3365 |
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| Authors: | QU Qing-Ling WANG Yang GAN Fu-Xi |
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| Affiliation: | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| Abstract: | Based on the Fresnel--Kirchhoff diffraction theory, we build up a Gaussian diffraction model of metal-oxide-type super-resolution near field structure (super-RENS), which can describe far field optical properties. The spectral contrast induced by refractive index and the structural changes in AgOx, PtOx and PdOx thin films, which are the key functional layers in super-RENS, are studied by using this model. Comparison results indicate that the spectral contrast depends intensively on the laser-induced distribution and change of the refractive index in the metal-oxide films. The readout mechanism of the metal-oxide-type super-RENS optical disc is further clarified. This Gaussian diffraction model can be used as a simple and effective method for choosing proper active materials in super-RENS. |
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| Keywords: | 78.20.-e 02.60.Cb 03.50.-z |
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