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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Abstract
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.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 50 (5), 994-998, 2009
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282679226103296
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- NII Article ID
- 10024814349
- 130004454248
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 10214004
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed