2014 Fiscal Year Final Research Report
light confinement in plasmonic nanocavities for use as biosensor
| Project/Area Number |
25630019
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Production engineering/Processing studies
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
田畑 仁 東京大学, 大学院工学系研究科, 准教授 (00263319)
藤川 茂紀 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)
前田 悦男 東京大学, 大学院工学系研究科, 助教 (60644599)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
岡本 美孝 千葉大学, 医学研究科, 教授 (40169157)
|
|---|
| Project Period (FY) |
2013-04-01 – 2015-03-31
|
| Keywords | メタマテリアル・表面プラズモン |
|---|
| Outline of Final Research Achievements |
The purpose of the research project is to demonstrate a small-size and low-cost sensor for the early diagnosis of diseases. A very sensitive detection technique of biomarkers is being developed using confined surface plasmons in nano-cavities operating on small sample volumes. Perfect light confinement in nano-cavities is possible when high-aspect-ratio U-shaped cavities are used to couple the cavity ridge hot spots with the scalable U-cavity resonances. Under the condition of coupled resonance, light is fully trapped in intense optical vortices and confined on the extended U-shaped cavity surfaces. This strong resonance generates sensitive reflectance dips. The light confinement in the nano-cavity is realized for a finite number of adjacent nano-cavities, so small sample volumes can be used. The reported perfect light confinement in the nano-cavities observed as a strong and sharp resonance is used in biochemical marker detection in a protein-ligand scheme.
|
| Free Research Field |
ナノマイクロ加工
|
