太赫兹辐射
偏振器
碳纳米管
材料科学
各向异性
极化(电化学)
衰减
纳米管
太赫兹光谱与技术
垂直的
线极化
吸收(声学)
光电子学
光学
纳米技术
双折射
物理
化学
复合材料
物理化学
几何学
激光器
数学
作者
Lei Ren,Cary L. Pint,L. G. Booshehri,William Rice,X. Wang,David Hilton,Kei Takeya,Iwao Kawayama,Masayoshi Tonouchi,Robert H. Hauge,Junichiro Kono
出处
期刊:Nano Letters
[American Chemical Society]
日期:2009-06-03
卷期号:9 (7): 2610-2613
被引量:239
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 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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