An FDTD Analysis of Nanostructured Electromagnetic Metamaterials Using Parallel Computer
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- Umeda Ryosuke
- Graduate School of Natural Science and Technology, Okayama University
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- Totsuji Chieko
- Graduate School of Natural Science and Technology, Okayama University
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- Tsuruta Kenji
- Graduate School of Natural Science and Technology, Okayama University
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- Totsuji Hiroo
- Graduate School of Natural Science and Technology, Okayama University
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説明
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 simulatioins 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.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 50 (5), 994-998, 2009
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679226103296
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- NII論文ID
- 10024814349
- 130004454248
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 10214004
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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