標題: | Enhancing the Interaction between High-Refractive Index Nanoparticles and Gold Film Substrates Based on Oblique Incidence Excitation |
作者: | Kuo, Yu-Lun Chuang, Shih-Yi Chen, Shiuan-Yeh Chen, Kuo-Ping 照明與能源光電研究所 影像與生醫光電研究所 Institute of Lighting and Energy Photonics Institute of Imaging and Biomedical Photonics |
公開日期: | 1-十月-2016 |
摘要: | We investigate the coupling of dipole resonances induced in a heteromaterial system composed of a high-refractive-index nanoparticle and a highly reflective substrate. A broad scattering signal and strong electric nearfield enhancement in the near-infrared region are generated by a hybrid Si nanoparticle on a gold-film system under oblique illumination. Dark-field microscopy investigations of the scattering signal measurement reveal the resonance shifts of the dipole mode of silicon nanoparticles on gold films. Further, the scattering signal is enhanced for p-polarized illumination in the near-infrared region. The results indicate that the coupling of Si nanoparticles on a gold-film system facilitates a possible application for both surface-enhanced fluorescence and surface-enhanced Raman scattering. |
URI: | http://dx.doi.org/10.1021/acsomega.6b00105 http://hdl.handle.net/11536/147847 |
ISSN: | 2470-1343 |
DOI: | 10.1021/acsomega.6b00105 |
期刊: | ACS OMEGA |
Volume: | 1 |
起始頁: | 613 |
結束頁: | 619 |
顯示於類別: | 期刊論文 |