| Numerical Analysis of Nano-Aperture Light Source for High-Density Optical Data Storage |
| |
| 作者姓名： | 许吉英 王佳 田芊 王伯雄 |
| |
| 作者单位： | State Key Laboratory of Precision Measurement Technology and Ins~rumen~s~ Depar~men~ of Precision Instruments, Tsinghua University, Beijing 100084 |
| |
| 基金项目： | Supported by the Hi-Tech Research and Development Programme of China under Grant No 2003AA311132, the National Natural Science Foundation of China under Grant No 60678028, and the China Postdoctoral Science Foundation under Grant No 20060390442. |
| |
| 摘 要： | Two unconventional nano-aperture light sources, an L-shaped nano-aperture source and a 3D nano-aperture source for high-density optical data storage, are numerically investigated. With incidence of a Gaussian beam, the spot size of the Poynting vector coupled into the recording medium is 130 × 175 nm^2 for the L-aperture and 120 × 135 nm^2 for the 3D nano-aperture. The quantitative analyses indicate that the unconventional nanoaperture sources can provide enough power density to record marks in the commercial recording medium. It is feasible to use a laser diode with a nano-aperture as an active nanometer light source for high-density optical data storage.
|
| 关 键 词： | 数字分析 光源 高密度 光学数据 |
| 收稿时间： | 2007-1-11 |
| 修稿时间： | 2007-01-11 |
Numerical Analysis of Nano-Aperture Light Source for High-Density Optical Data Storage |
| |
| XU Ji-Ying,WANG Jia,TIAN Qian,WANG Bo-Xiong.Numerical Analysis of Nano-Aperture Light Source for High-Density Optical Data Storage[J].Chinese Physics Letters,2007,24(7):2105-2107. |
| |
| Authors: | XU Ji-Ying WANG Jia TIAN Qian WANG Bo-Xiong |
| |
| Affiliation: | State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084 |
| |
| Abstract: | Two unconventional nano-aperture light sources, an L-shaped nano-aperture source and a 3D nano-aperture source for high-density optical data storage, are numerically investigated. With incidence of a Gaussian beam, the spot size of the Poynting vector coupled into the recording medium is 130×175nm2 for the L-aperture and 120×135nm2 for the 3D nano-aperture. The quantitative analyses indicate that the unconventional nano-aperture sources can provide enough power density to record marks in the commercial recording medium. It is feasible to use a laser diode with a nano-aperture as an active nanometer light source for high-density optical data storage. |
| |
| Keywords: | 78 67 -n 42 79 Ag 42 79 Vb |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理快报》浏览原始摘要信息 |
|
点击此处可从《中国物理快报》下载免费的PDF全文 |
