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-Oct-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
Appears in Collections:Articles