2009 Fiscal Year Final Research Report
Elucidation of the mechanism of the surface nano relief formation of azo-polymers using metallic tip enhanced near-field light
| Project/Area Number |
20760040
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Applied optics/Quantum optical engineering
|
|---|
| Research Institution | The Institute of Physical and Chemical Research |
|---|
Principal Investigator |
ISHITOBI Hidekazu The Institute of Physical and Chemical Research, 河田ナノフォトニクス研究室, 協力研究員 (20372633)
|
|---|
| Project Period (FY) |
2008 – 2009
|
| Keywords | 近接場光 / アゾポリマー / 光異性化 / 光誘起表面レリーフ / 金属チップ電場増強 / 光勾配力 |
|---|
| Research Abstract |
I found that the surface relief pattern induced by a single light spot having only a longitudinal electric field (Ez) was strongly dependent on the film thickness. Such a film thickness dependence was not observed in the case of a lateral electric field (Ex, y). I have also succeeded in inducing polymer nanomovement of an azo polymer film by combining metal tip enhancement and radial polarization. I found that the induced surface relief was dependent on the tip force which exerted on the polymer surface. It is considered that adsorption force between the tip end and the polymer surface plays an important role.
|
