Optical response of finite-length carbon nanotubes

Abstract

Optical response of finite-length metallic carbon nanotubes is calculated including effects of induced edge charges in a self-consistent manner. The results show that the main resonance corresponding to excitation of the fundamental plasmon mode with wave vector $\pi /l$ with $l$ being the tube length is quite robust and unaffected. This arises because the strong electric field associated with edge charges is screened and decays rapidly inside the nanotube. For higher-frequency resonances, the field starts to be mixed and tends to shift resonances to higher frequencies.

10 pages, 9 figures, to be published in J. Phys. Soc. Jpn

References in corpus (5)

• Size, Shape and Low Energy Electronic Structure of Carbon Nanotubes
• Bandgap Change of Carbon Nanotubes: Effect of Small Tensile and Torsional Strain
• Carbon Nanotube Terahertz Polarizer
• Dynamical response of a one dimensional quantum wire electron system
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