Terahertz radiation from armchair carbon nanotube dipole antenna
Wang Yue(王玥)a)b), Wu Qun(吴群)a)† , He Xun-Jun(贺训军)b), Zhang Shao-Qing(张少卿)a), and Zhuang Lei-Lei(庄蕾蕾)b)
aSchool of Electronics and Information Technology, Harbin Institute of Technology, Harbin 150001, China; b Department of Electrical Science and Technology, Harbin University of Science and Technology, Harbin 150080, China
Abstract This paper investigates the electromagnetic radiation characteristics of a metallic, large aspect ratio single walled carbon nanotube antenna in the terahertz frequency region below 12.5 THz. The key features of terahertz pulse have been revealed on the carbon nanotube antenna in comparison with conventional photoconductive switching. The terahertz waveforms, radiation power and their field distributions have been evaluated and are analysed. The Fourier transformed spectra over the whole frequency range demonstrate that the carbon nanotube antenna can be used as radiation source for broadband terahertz applications.
Received: 08 October 2008
Revised: 06 November 2008
Accepted manuscript online:
Fund: Project supported by the National
Natural Science Foundation of China (Grant No 60571026) and the
Science and Technology Research Foundation of Heilongjiang Education
Bureau of China (Grant No
11531055).
Cite this article:
Wang Yue(王玥), Wu Qun(吴群), He Xun-Jun(贺训军), Zhang Shao-Qing(张少卿), and Zhuang Lei-Lei(庄蕾蕾) Terahertz radiation from armchair carbon nanotube dipole antenna 2009 Chin. Phys. B 18 1801
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