Carbon Nanotube Terahertz Polarizer

详细信息    查看全文

• 作者：Lei Ren ; Cary L. Pint ; Layla G. Booshehri ; William D. Rice ; Xiangfeng Wang ; David J. Hilton ; Kei Takeya ; Iwao Kawayama ; Masayoshi Tonouchi ; Robert H. Hauge ; Junichiro Kono
• 刊名：Nano Letters
• 出版年：2009
• 出版时间：July 8, 2009
• 年：2009
• 卷：9
• 期：7
• 页码：2610-2613
• 全文大小：193K
• 年卷期：v.9,no.7(July 8, 2009)
• ISSN：1530-6992

文摘

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, the reduced linear dichrosim was calculated 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.