抄録
We show evidence of a dependence of the enhancement of the Raman scattering cross section on the length of the gradient in graded silver island films. A factor-of-three increase in the Raman signal is observed for gradients with length of the order of 0.5 mm when compared to gradients of the order of 9 mm. Scanning electron microscopy reveals the nanostructure of the two films to be statistically similar. We attribute the observation to differences in plasmon hybridization in the gradients arising from long range structural differences.
| 本文言語 | English |
|---|---|
| 論文番号 | 053106 |
| ジャーナル | Applied Physics Letters |
| 巻 | 94 |
| 号 | 5 |
| DOI | |
| 出版ステータス | Published - 2009 |
| 外部発表 | はい |
ASJC Scopus subject areas
- 物理学および天文学（その他）