2009年5月
An FDTD Analysis of Nanostructured Electromagnetic Metamaterials Using Parallel Computer
MATERIALS TRANSACTIONS
- ,
- ,
- ,
- 巻
- 50
- 号
- 5
- 開始ページ
- 994
- 終了ページ
- 998
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.2320/matertrans.MC200822
- 出版者・発行元
- JAPAN INST METALS
Metamaterial with negative permittivity and permeability is studied by means of computer simulations. We analyze the electromagnetic response of nanostructured metamaterials to evanescent waves at optical frequency via the finite-difference time-domain simulations on parallel computer. Effects of the nanostructure on dielectric and magnetic properties are taken into account by introducing the Drude-Lorentz model in the materials dispersion. Size effect on the dispersion is examined by comparing the model with that of a noble metal particle. A re-focusing and an amplification of the evanescent waves propagating through a metamaterial, consisting of metal slabs/vacuum stacking, are demonstrated for the frequency range at 614-744 THz. By properly treating the materials dispersion, we show that the nanostructured metamaterial may behave as a left-handed material in the optical range. [doi:10.2320/matertrans.MC200822]
- リンク情報
- ID情報
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- DOI : 10.2320/matertrans.MC200822
- ISSN : 1345-9678
- eISSN : 1347-5320
- Web of Science ID : WOS:000267516300011