Enhancing electric fields around nanospheres by parallel clapboards

被引：7
作者：
Li Xue-Lian [1 ]
Zhang Zhi-Dong [2 ]
Wang Hong-Yan [2 ]
Xiong Zu-Hong [1 ]
Zhang Zhong-Yue [1 ]
机构：
[1] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China
[2] SW Jiaotong Univ, Inst High Temp & High Pressure Phys, Chengdu 610031, Peoples R China
来源：
ACTA PHYSICA SINICA | 2011年 / 60卷 / 04期
关键词：
silver nanosphere; parallel clapboard; surface plasmon; discrete dipole approximation; DISCRETE-DIPOLE APPROXIMATION; OPTICAL-PROPERTIES; RAMAN-SCATTERING; SURFACE-PLASMON; ABSORPTION; AG; NANORODS;
D O I：
10.7498/aps.60.047807
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
引用
收藏
页数：5
相关论文
共 26 条
[1]   Surface-enhanced Raman scattering [J].
Campion, A ;
Kambhampati, P .
CHEMICAL SOCIETY REVIEWS, 1998, 27 (04) :241-250
[2]   DISCRETE-DIPOLE APPROXIMATION FOR SCATTERING CALCULATIONS [J].
DRAINE, BT ;
FLATAU, PJ .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1994, 11 (04) :1491-1499
[3]   Enhanced substrate-induced coupling in two-dimensional gold nanoparticle arrays -: art. no. 245407 [J].
Félidj, N ;
Aubard, J ;
Lévi, G ;
Krenn, JR ;
Schider, G ;
Leitner, A ;
Aussenegg, FR .
PHYSICAL REVIEW B, 2002, 66 (24) :1-7
[4]   Plasmonic Nanogalaxies: Multiscale Aperiodic Arrays for Surface-Enhanced Raman Sensing [J].
Gopinath, Ashwin ;
Boriskina, Svetlana V. ;
Premasiri, W. Ranjith ;
Ziegler, Lawrence ;
Reinhard, Bjoern M. ;
Dal Negro, Luca .
NANO LETTERS, 2009, 9 (11) :3922-3929
[5]   Research of surface enhanced Raman scattering caused by surface plasmon of Ag nano-structures [J].
Huang Qian ;
Wang Jing ;
Cao Li-Ran ;
Sun Jian ;
Zhang Xiao-Dan ;
Geng Wei-Dong ;
Xiong Shao-Zhen ;
Zhao Ying .
ACTA PHYSICA SINICA, 2009, 58 (03) :1980-1986
[6]   Nanosphere lithography: Effect of the external dielectric medium on the surface plasmon resonance spectrum of a periodic array of sliver nanoparticles [J].
Jensen, TR ;
Duval, ML ;
Kelly, KL ;
Lazarides, AA ;
Schatz, GC ;
Van Duyne, RP .
JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (45) :9846-9853
[7]   The optical properties of metal nanoparticles: The influence of size, shape, and dielectric environment [J].
Kelly, KL ;
Coronado, E ;
Zhao, LL ;
Schatz, GC .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (03) :668-677
[8]   Gold nanolenses generated by laser ablation-efficient enhancing structure for surface enhanced Raman scattering analytics and sensing [J].
Kneipp, Janina ;
Li, Xiangting ;
Sherwood, Margaret ;
Panne, Ulrich ;
Kneipp, Harald ;
Stockman, Mark I. ;
Kneipp, Katrin .
ANALYTICAL CHEMISTRY, 2008, 80 (11) :4247-4251
[9]   Enhanced second harmonic generation in a self-similar chain of metal nanospheres [J].
Li, KR ;
Stockman, MI ;
Bergman, DJ .
PHYSICAL REVIEW B, 2005, 72 (15)
[10]   Surface plasmon amplification by stimulated emission in nanolenses [J].
Li, KR ;
Li, XT ;
Stockman, MI ;
Bergman, DJ .
PHYSICAL REVIEW B, 2005, 71 (11)
123