Open AccessEnhancing electric fields around nanospheresby parallel clapboards
Author(s) -
Xuelian Li,
Zhidong Zhang,
Hongyan Wang,
Zuhong Xiong,
Zhongyue Zhang
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.047807
Subject(s) - electric field , discrete dipole approximation , materials science , nanostructure , raman scattering , dipole , nanosphere lithography , scattering , raman spectroscopy , nanotechnology , optics , physics , fabrication , quantum mechanics , medicine , alternative medicine , pathology
Nanospheres are widely used as the substrates for surface enhanced Raman scattering (SERS). In order to further enhance the electric fields around nanospheres and improve the SERS intensity, in this paper, we introduce a novel nanostructure which is composed of a couple of parallel clapboards and a clamped nanosphere. The discrete dipole approximation calculation results indicate that when the parallel clapboards are used, the electric fields around the nanosphere are much enhanced. Therefore, the nanospheres clamped by parallel clapboards may work well as the SERS substrates. In addition, the effects of the structural parameters of parallel clapboards are also investigated.