Carbon Nanotube Terahertz Polarizer
作者： Lei Ren , Cary L. Pint , Layla G. Booshehri , William D. Rice , Xiangfeng Wang
DOI: 10.1021/NL900815S
关键词: Anisotropy 、 Polarizer 、 Optoelectronics 、 Terahertz radiation 、 Nanotechnology 、 Nanotube 、 Polarization (waves) 、 Liquid crystal 、 Carbon nanotube 、 Materials science 、 Optical properties of carbon nanotubes
摘要: 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 polarization perpendicular (parallel) to nanotube axis. From data, reduced dichrosim was calculated be 3, corresponding nematic order parameter 1, which demonstrates nearly perfect alignment well intrinsically anisotropic response in film.
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