2021 Fiscal Year Final Research Report
Development of fabrication technique of ultra-fine metallic nanostructures by laser-induced photo-reduction applied with polarization
| Project/Area Number |
19H02625
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 30020:Optical engineering and photon science-related
|
|---|
| Research Institution | Shizuoka University |
|---|
Principal Investigator |
ONO ATSUSHI 静岡大学, 電子工学研究所, 教授 (20435639)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
石飛 秀和 大阪大学, 生命機能研究科, 准教授 (20372633)
|
|---|
| Project Period (FY) |
2019-04-01 – 2022-03-31
|
| Keywords | レーザープロセシング / 光還元 |
|---|
| Outline of Final Research Achievements |
Our research is a study on metallic nanostructure patterning techniques by a photoreduction process in nonlinear excitation process by femtosecond pulsed laser irradiation. The research purpose is the clarification of metal precipitation process with the photoreduction in the laser focus spot.For this research purpose, we constructed the laser writing setup of spot and line scanning irradiation system with the control of laser incident polarization such as any direction of linear polarization, circular polarization, radial polarization, and azimuthal polarization. By patterning metallic nanostructures with this optical setup, we clarified that the electric field oscillation contributes to the structural formation, and we established new fabrication technique of metal nanostructure utilizing the electric field oscillation, i.e. polarization.
|
| Free Research Field |
応用光学
|
| Academic Significance and Societal Importance of the Research Achievements |
近年注目されているプラズモニクスやメタマテリアルの学術分野において，金属微細構造作製技術はそれら学術領域の発展に欠かすことのできない重要な基盤技術であり，これまで電子線リソグラフィ法や化学合成法により作製されるのがほとんどであった．本研究成果は，これら先行技術とは異なるレーザーリソグラフィ法を基礎とするものであり，新たな超微細金属作製技術を創成するものである．
|
