Kadochkin A S, Moiseev S G, Dadoenkova Y S, Svetukhin V V, Zolotovskii I O
Opt Express. 2017 Oct 30;25(22):27165-27171. doi: 10.1364/OE.25.027165.
The interaction of a surface plasmon polariton wave of the far-infrared regime propagating in a single-walled carbon nanotube with a drift current is theoretically investigated. It is shown that under the synchronism condition a surface plasmon polariton amplification mechanism is implemented due to the transfer of electromagnetic energy from a drift current wave into a terahertz surface wave propagating along the surface of a single-walled carbon nanotube. Numerical calculations show that for a typical carbon nanotube surface plasmon polariton amplification coefficient reaches huge values of the order of 10 сm, which makes it possible to create a carbon-nanotube-based spaser.
从理论上研究了在单壁碳纳米管中传播的远红外波段表面等离激元极化激元波与漂移电流的相互作用。结果表明，在同步条件下，由于电磁能量从漂移电流波转移到沿单壁碳纳米管表面传播的太赫兹表面波，实现了表面等离激元极化激元放大机制。数值计算表明，对于典型的碳纳米管，表面等离激元极化激元放大系数达到10厘米量级的巨大值，这使得制造基于碳纳米管的受激辐射放大源成为可能。
