2009 Fiscal Year Final Research Report
Realization of subwavelength imaging in the visible light region using multi-layer metamaterials consisting of metal and dielectric ultra-thin films
| Project/Area Number |
19710081
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nanostructural science
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| Research Institution | Nara Institute of Science and Technology |
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Principal Investigator |
TOMITA Satoshi Nara Institute of Science and Technology, 物質創成科学研究科, 助教 (90360594)
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| Project Period (FY) |
2007 – 2009
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| Keywords | メタマテリアル / ナノ光学 / サブ波長イメージング / 金属誘電体多層薄膜 / 表面プラズモンポラリトン / 導波モード / 光の共鳴伝送 / 光リソグラフィ |
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| Research Abstract |
Multi-layer metamaterials consisting of Al and MgF_2 layers or Ag and SiO_2 layers have been prepared. Photon transport via coupled surface plasmon polaritons in the metamaterials has been studied experimentally using an attenuated total reflection and resonant photon tunneling measurement system. We found that Ag-SiO_2 metamaterials have a lower intrinsic loss in comparison with Al-MgF_2 metamaterials. Moreover, we revealed that MIM structures consisting of Ag and SiO_2 convey photons resonantly via a characteristic guided mode.
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