2012 Fiscal Year Final Research Report
Observation and application of novel plasma phenomena induced in state of negative refractive index
| Project/Area Number |
22340171
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Plasma science
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
SAKAI Osamu 京都大学, 工学研究科, 准教授 (30362445)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | プラズマ / メタマテリアル / 負屈折率 / 直列共振 / 高電子密度 |
|---|
| Research Abstract |
We applied metamaterials, whose concepts and functions have been extensively explored for these years, to high-density gas-discharge plasma generation. Negative-permeability spaces were designed and achieved by metamaterial structures, and injection of microwaves at several hundreds of watts into these spaces led to generation of high-density plasmas with negative permittivity, which was confirmed by plasma diagnostics. States with simultaneous negative permittivity and permeability led to dynamic generation of negative-refractive-index states, and generation processes were in strong nonlinear systems. This study allows us to propose novel plasma sources and to verify new techniques of nonlinear metamaterials for industrial activities.
|
