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Surface Plasmon Assisted Directional Rayleigh Scattering
Shen-long Jiang1, Lu Chen2, Xin-xin Yu1,3, Hong-jun Zheng2, Ke Lin1, Qun Zhang1,2, Xiao-ping Wang1,3, Yi Luo1,2
1.Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Tech-nology of China, Hefei 230026, China;2.Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;3.Department of Physics, University of Science and Technology of China, Hefei 230026, China
Abstract:
The origin of the Rayleigh scattering ring effect has been experimentally examined on a quantum dot/metal film system, in which CdTe quantum dots embedded in PVP are spin-coated on a thin Au film. On the basis of the angle-dependent, optical measurements under different excitation schemes (i.e., wavelength and polarization), we demonstrate that sur-face plasmon assisted directional radiation is responsible for such an effect. Moreover, an interesting phase-shift behavior is addressed.
Key words:  Surface plasmon  Directional Rayleigh scattering  Quantum dot  Metal film
FundProject:This work was partially supported by the Ministry of Science and Technology of China (No.HH2060030013 and No.2016YFA0200602), the National Natu-ral Science Foundation of China (No.21573211 and No.21421063), the Chinese Academy of Sci-ences (No.XDB01020000), and the Fundamen-tal Research Funds for the Central Universities (No.WK2340000063)
表面等离激元协助的方向性瑞利光散射研究
江申龙1, 陈鹿2, 于欣欣1,3, 郑红军2, 林珂1, 张群1,2, 王晓平1,3, 罗毅1,2
1.中国科学技术大学合肥微尺度物质科学国家实验室(筹), 合肥 230026;2.中国科学技术大学化学物理系, 合肥 230026;3.中国科学技术大学物理系, 合肥 230026
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DOI:10.1063/1674-0068/30/cjcp1611204
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