2011 Fiscal Year Final Research Report
Visualization of plasmon wave functions by a scanning tunneling electron microscop
| Project/Area Number |
22655007
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Physical chemistry
|
|---|
| Research Institution | Waseda University |
|---|
Principal Investigator |
IMURA Kohei 早稲田大学, 理工学術院, 准教授 (80342632)
|
|---|
| Project Period (FY) |
2010 – 2011
|
| Keywords | プラズモン / 走査トンネル電子顕微鏡 / 近接場光学顕微鏡 / 波動関数 |
|---|
| Research Abstract |
In this project, we proposed to excite plasmons by the electron injection and to visualize the plasmon wavefunctions by a scanning tunneling electron microscope. We developed the microscope based on the scanning near-field optical microscope. The microsope can achieve a spatial resolution less than a few tens nm in topography, optical, and tunnel electron images. We found that a characteristic spatial feature was visualized in the tunnel electron image for the gold thin film. Alternatively, we visualize plasmon wavefunctions excited in various nanostructures by using the scanning near-field optical microscope.
|
