2014 Fiscal Year Final Research Report
Photoinduced longitudinal electric field effect of the excitons in semiconductor quantum dots
| Project/Area Number |
23340083
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Condensed matter physics I
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2011-04-01 – 2015-03-31
|
| Keywords | 量子ドット / 縦電場効果 |
|---|
| Outline of Final Research Achievements |
The three-dimensional quantum confinement effect of the carriers in a semiconductor quantum dot gives the excitonic polarization the longitudinal component of the electric field, as well as the transverse component. The longitudinal component shifts the resonant frequency of the excitonic polarization, indicating that the resonant frequency of the excitonic polarization is modified by changing the excitation intensity and exhibiting a new optical effect. We studied the new optical effect arising from the photoinduced longitudinal component in a quantum dot by time-resolved spectroscopies and numerical calculations.
|
| Free Research Field |
半導体光物性
|
