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Radiation properties of metal nanorods at the optical frequency domain
Chenglong Zhao,Jiasen Zhang * #
School of Physics, Peking University, Beijing 100871, China
*Correspondence author
#Submitted by
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Funding: Research Fund for the Doctoral Program of Higher Education （No.20130001110050）
Opened online:27 December 2016
Accepted by: none
Citation: Chenglong Zhao,Jiasen Zhang.Radiation properties of metal nanorods at the optical frequency domain[OL]. [27 December 2016] http://en.paper.edu.cn/en_releasepaper/content/4713849
 
 
In this paper we investigated the radiation properties of metal nanorods at the optical frequency domain and found that they have many features compared with its conventional radio-wave equivalents. After defining a parameter Λ = λeff /λ, which was the ratio of the effective wavelength of the rod antenna to the incident wavelength, we found that Λ had a great influence on the radiation pattern. When the radiation pattern has a higher resonant order, it has a sharper directivity even without side lobes, which provides new design flexibilities in improving the directivities of the optical antennas.
Keywords:optics; metal nanorods; optical antennas; radiation patterns
 
 
 

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