Fabrication and characterization of three-dimensional resonant metamaterials working at visible light region

2014 Fiscal Year Final Research Report

• Project Area: Electromagnetic Metamaterials
• Project/Area Number: 22109006
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: TAKUO Tanaka 独立行政法人理化学研究所, 田中メタマテリアル研究室, 准主任研究員 (40283733)
• Co-Investigator(Kenkyū-buntansha): IYODA Tomokazu 東京工業大学, フロンティア研究機構, 教授 (90168534) ; FUJIKAWA Shigenori 九州大学, カーボンニュートラル・エネルギー国際研究所, 准教授 (60333332)
• Co-Investigator(Renkei-kenkyūsha): KAMATA Kaori JST-ERATO, 彌田超集積材料プロジェクト, グループリーダー(東京工業大学特任准教授) (00361791)
• Project Period (FY): 2010-04-01 – 2015-03-31
• Keywords: メタマテリアル / 金属ナノ構造 / プラズモン / ＤＮＡテンプレート / ブロックコポリマー / 自己組織化 / 金属マイクロコイル / 擬スプリットリング構造

Outline of Final Research Achievements

In order to realize the three-dimensional resonant metamaterials, we studied and developed several fabrication techniques. We developed the novel laser fabrication technique that can create three-dimensional arbitral metal structures with 100 nm spatial resolution. We also developed DNA templating technique and metal-particles alignment technique for self-organized formation of resonant structures of metamaterials. Moreover, using electron lithography method and residual stress of metal, we made a three-dimensional metamaterial in 4mm × 4mm area. Self-organized structures of block-co-polymer or biomaterials was used as templates for metamaterial structures. Novel fabrication technique for high aspect ratio metal nano structures, which is termed "nanocoating lithography", was also successfully developed.

Free Research Field

応用光学，ナノフォトニクス