| Presentation | 2006-02-02 Numerical analysis of light-wave diffraction from an aperture of a metallic layer : Application of the FDTD method combined with the motion equation of electron Shinya KAGAWA, Yiwei HE, Toshitaka KOJIMA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, a density growth is demanded in optical storage technologies. But, It is said that the upper limit of recording density by the current optical recording system is several tens of gigabits per inch square due to the optical diffraction limit even in the case of using a short wavelength. Then, as a technology that enables us to break down the optical diffraction limit, the optical near field technology has gotten a lot of attention. In this paper, we try to two-dimensional numerical analysis of electric field distributions near a metallic nanoaperture that generates an optical near field using the FDTD(Finite Difference Time Domain) method. We also carry out numerical analysis of readout characteristics of a recording mark of the disk model that consists of the nanoaperture and the phase change disk structure. In the present analysis, the FDTD method combined with the motion equation of electron is applied to a metallic medium whose permittivity can become negative at the optical wavelength range. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical near field / Optical recording / Nanoaperture / Metal / FDTD method |
| Paper # | PN2005-88,OFT2005-75,OPE2005-136,LQE2005-151 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2006/1/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Numerical analysis of light-wave diffraction from an aperture of a metallic layer : Application of the FDTD method combined with the motion equation of electron |
| Sub Title (in English) | |
| Keyword(1) | Optical near field |
| Keyword(2) | Optical recording |
| Keyword(3) | Nanoaperture |
| Keyword(4) | Metal |
| Keyword(5) | FDTD method |
| 1st Author's Name | Shinya KAGAWA |
| 1st Author's Affiliation | Graduate School, Kansai University() |
| 2nd Author's Name | Yiwei HE |
| 2nd Author's Affiliation | Faculty of Engineering, Osaka Electro-Communication University |
| 3rd Author's Name | Toshitaka KOJIMA |
| 3rd Author's Affiliation | Graduate School, Kansai University |
| Date | 2006-02-02 |
| Paper # | PN2005-88,OFT2005-75,OPE2005-136,LQE2005-151 |
| Volume (vol) | vol.105 |
| Number (no) | 593 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |