High-performance resonator based on single-walled carbon nanotube bundle for THz application

Abstract

A half-wavelength resonator based on single-walled carbon nanotube (SWCNT) bundle is investigated for THz applications, with the multi-conductor transmission-line and equivalent single-conductor models. The performances of the resonator, including the resonant frequency and Q-factors, are discussed in detail. By properly selecting the tube diameter and bundle size, a high unloaded Q-factor of 240 can be achieved with the SWCNT bundle-based resonator for a specific resonant frequency.

Keywords:

• carbon nanotube
• resonator
• high Q-factor
• THz

Acknowledgement

This work was supported in part by the National Basic Research Program of China under Grant 2009CB320202 and in part by the National Natural Science Fund of China under Grant 60906016.