Absorption Range and Energy Shift of Surface Plasmon in Au Monomer and Dimer
Xiao-Kun Zhao1,2 , Yuan Yao2** , Pei-Lin Lang1 , Hong-Lian Guo2 , Xi Shen2 , Yan-Guo Wang2 , Ri-Cheng Yu2
1 School of Science, Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 1008762 Beijing National Laboratory of Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190
Abstract ：The resonance behaviors of local surface plasmon resonance in Au monomer and dimer are characterized systemically by electron energy loss spectroscopy in a scanning transmission electron microscope. The measured absorption range is about 20 nm larger than the physical size of the Au nanoparticles and the resonance peak energy shows a red shift when the electron beam passes off the nanoparticles. The Au dimer displays similar behaviors. Numerical simulation also reproduces those experimental results.
收稿日期: 2015-10-19
出版日期: 2016-02-26
:
68.37.Ma
(Scanning transmission electron microscopy (STEM))
68.37.Og
(High-resolution transmission electron microscopy (HRTEM))
73.20.Mf
(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
79.20.Uv
(Electron energy loss spectroscopy)
71.45.Lr
(Charge-density-wave systems)
引用本文:
. [J]. 中国物理快报, 2016, 33(02): 26802-026802.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/33/2/026802
或
https://cpl.iphy.ac.cn/CN/Y2016/V33/I02/26802
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2016, Vol. 33 
