Abstract
The properties of the terahertz resonant surface plasmons wave on the carbon nanotube film and dielectric interface have been investigated. As a first step towards engineering terahertz SPPs-like surface modes, we present a computer experiment to demonstrate that the carbon nanotube film surface can also be employed to concentrate and guide the terahertz SPPs wave. The carbon nanotube film is modeled in an experimentally realizable geometry. It is shown that a unique electromagnetic surface mode in terahertz region can be supported along the carbon nanotube film/dielectric interface when the free-space broadband terahertz pulse is incident on the carbon nanotube film with subwavelength gratings. Comparing with noble metals, plasmonic nano-structure materials based on carbon nanotube film offer a potentially more versatile approach to engineering tightly confined surface modes in the THz regime.
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Acknowledgment
The work is partly supported by the National Natural Science Foundation of China (60871073 and 51005001), the Research Foundation of Education Bureau of Heilongjiang Province (11551098), and Youth Foundation of Harbin University of Science and Technology (2009YF024 and 2009YF025).
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Wang, Y., Wang, X., Wu, Q. et al. Surface Plasmon Resonant THz Wave Transmission on Carbon Nanotube Film. Plasmonics 7, 411–415 (2012). https://doi.org/10.1007/s11468-011-9322-4
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DOI: https://doi.org/10.1007/s11468-011-9322-4