Experimental observation of extremely weak optical scattering from an interlocking carbon nanotube array.

Abstract

We experimentally demonstrate a nearly wavelength-independent optical reflection from an extremely rough carbon nanotube sample. The sample is made of a vertically aligned nanotube array, is a super dark material, and exhibits a near-perfect blackbody emission at T=450 K-600 K. No other material exhibits such optical properties, i.e., ultralow reflectance accompanied by a lack of wavelength scaling behavior. This observation is a result of the lowest ever measured reflectance (R=0.0003) of the sample over a broad infrared wavelength of 3 μm < λ < 13 μm. This discovery may be attributed to the unique interlocking surface of the nanotube array, consisting of both a global, large scale and a short-range randomness.

DOI: 10.1364/AO.50.001850

Cite this paper

@article{Yang2011ExperimentalOO, title={Experimental observation of extremely weak optical scattering from an interlocking carbon nanotube array.}, author={Zu-Po Yang and Mei-Li Hsieh and James A Bur and Lijie Ci and Leonard M. Hanssen and Boris Wilthan and Pulickel M. Ajayan and Shawn-Yu Lin}, journal={Applied optics}, year={2011}, volume={50 13}, pages={1850-5} }