Dynamic terahertz polarization in single-walled carbon nanotubes

作者:Xu, X. L.*; Parkinson, P.; Chuang, K. -C.; Johnston, M. B.; Nicholas, R. J.; Herz, L. M.
来源:Physical Review B, 2010, 82(8): 085441.
DOI:10.1103/PhysRevB.82.085441

摘要

We have investigated the anisotropic dynamic dielectric response of aligned and well-isolated single-walled carbon nanotubes using optical-pump terahertz (THz)-probe techniques. The polarization anisotropy measurements demonstrate that the THz radiation interacts only with radiation polarized parallel to the nanotubes which have been selectively excited by a polarized pump pulse thus allowing controlled THz polarization to be achieved from unaligned nanotubes.

  • 出版日期2010-8-24