Abstract Physics and applications of surface plasmon in graphene and carbon nanotubes are reviewed. The surface plasmon in graphene can be excited by THz electro-magnetic wave. Since the surface plasmon in graphene propagates sufficiently long ( > 10 μ m) on the surface, we can fabricate a new THz device. The surface plasmon in doped carbon nanotube is observed as a new absorption peak in infrared region. The origin of the surface plasmon in nanotube is understood by inter-subband plasmon whose energy is scaled by the Fermi energy and diameter of the nanotube. In order to understand physics of the surface plasmon, we first discuss resonant conditions of surface plasmon for graphene and nanotube by calculating energy dispersions of the surface plasmon. Then we show some experimental techniques to excite the surface plasmon, in which energy-momentum matching is achieved between a photon and a plasmon. For discussing propagation of the surface plasmon, we define characteristic lengths of propagation and confinement for a surface plasmon. Finally, we give a perspective for the applications of the surface plasmon in graphene and nanotubes.

中文翻译：

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石墨烯和碳纳米管中的表面等离子体

摘要 综述了表面等离子体在石墨烯和碳纳米管中的物理和应用。石墨烯中的表面等离子体可以被太赫兹电磁波激发。由于石墨烯中的表面等离子体在表面上传播足够长（> 10 μ m），我们可以制造新的太赫兹器件。掺杂碳纳米管中的表面等离子体在红外区域被观察为一个新的吸收峰。纳米管表面等离子体的起源可以通过子带间等离子体来理解，其能量由费米能量和纳米管直径缩放。为了理解表面等离子体的物理学，我们首先通过计算表面等离子体的能量色散来讨论石墨烯和纳米管的表面等离子体的共振条件。然后我们展示了一些激发表面等离子体的实验技术，其中在光子和等离子体之间实现能量-动量匹配。为了讨论表面等离子体的传播，我们定义了表面等离子体的传播和限制的特征长度。最后，我们给出了表面等离子体在石墨烯和纳米管中的应用的前景。