Investigation on terahertz property of single-walled carbon nanotubes

Chun-dong Wang; Hong Su; Jian-pang Zhai; Shi-xing Wang; Zi-yu Chen; Shuang-chen Ruan

doi:10.1117/12.900114

11 August 2011 Investigation on terahertz property of single-walled carbon nanotubes

Chun-dong Wang, Hong Su, Jian-pang Zhai, Shi-xing Wang, Zi-yu Chen, Shuang-chen Ruan

Proceedings Volume 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications; 81950B (2011) https://doi.org/10.1117/12.900114
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

4nm single-walled carbon nanotubes ( SWNTs ) of three possible structures were fabricated. The frequency-domain transmission spectrum of SWNTs was obtained by Fourier transform in terahertz time-domain spectroscopy (THz-TDS) system. By analyzing the spectrum, we can see that the absorption coefficient of SWNTs augments with an increase in the frequency. It increases slowly at low frequency, and almost be linear. But after 1.1THz, the absorption coefficient rises rapidly with the frequency. The result is generally corresponding with the theory Drude-Lorentz model combined with the Maxwell-Garnett model. But there is some difference at low frequency, further discuss is needed.

Citation Download Citation

Chun-dong Wang, Hong Su, Jian-pang Zhai, Shi-xing Wang, Zi-yu Chen, and Shuang-chen Ruan "Investigation on terahertz property of single-walled carbon nanotubes", Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 81950B (11 August 2011); https://doi.org/10.1117/12.900114

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