Carbon Nanotube Terahertz Polarizer

Details Carbon Nanotube Terahertz Polarizer Carbon Nanotube Terahertz Polarizer

2009-03-14

arxiv.org/abs/0903.2583v1

Nano Letters 9, 2610 (2009)

Physics

Condensed Matter

Materials Science

13 pages, 3 figures

Scientific paper

We describe a film of highly-aligned single-walled carbon nanotubes that acts as an excellent terahertz linear polarizer. There is virtually no attenuation (strong absorption) when the terahertz polarization is perpendicular (parallel) to the nanotube axis. From the data we calculated the reduced linear dichrosim to be 3, corresponding to a nematic order parameter of 1, which demonstrates nearly perfect alignment as well as intrinsically anisotropic terahertz response of single-walled carbon nanotubes in the film.

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