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arXiv 0806.2958cond-mat.mtrl-scicond-mat.mes-hall
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多壁碳纳米管在红外和可见光波段的光波导和微纳分析

Analysis of Multiwalled Carbon Nanotubes as Waveguides and Antennas in the Infrared and the Visible Regimes

M. V. Shuba, G. Ya. Slepyan, S. A. Maksimenko, C. Thomsen, A. Lakhtakia

摘要:

从理论上分析了方位对称导波在多壁碳纳米管(MWCNTs)中的传播特性。多壁碳纳米管被建模为同心,圆柱形,导电壳的合奏。轻微衰减的导波和天线共振由于边缘效应存在不太厚的多壁碳纳米管在远红外和中红外制度。带间跃迁阻碍了导波的传播,并对有限长多壁碳纳米管作为天线的性能产生有害影响。还分析了表面等离子体波沿具有金核的多壁碳纳米管的传播。在近红外和可见光区,壳层有效地表现为有损耗的抑制表面等离子体波沿金芯的传播。

英文摘要:

The propagation of azimuthally symmetric guided waves in multiwalled carbon nanotubes (MWCNTs) was analyzed theoretically in the mid-infrared and the visible regimes. The MWCNTs were modeled as ensembles of concentric, cylindrical, conducting shells. Slightly attenuated guided waves and antenna resonances due to the edge effect exist for not-too-thick MWCNTs in the far- and mid-infrared regimes. Interband transitions hinder the propagation of guided waves and have a deleterious effect on the performance of a finite-length MWCNT as an antenna. Propagation of surface-plasmon waves along an MWCNT with a gold core was also analyzed. In the near-infrared and the visible regimes, the shells behave effectively as lossy dielectrics suppressing surface-plasmon-wave propagation along the gold core.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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