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Proceedings Paper

A super dark material: randomness and porosity in a nanostructure
Author(s): Z.-P. Yang; S. Y. Lin; J. A. Bur; L. Ci; P. M. Ajayan
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Paper Abstract

In this paper, we report the realization of a low-density vertically aligned carbon nanotube (VA-CNT) array and show that it can have an ultra-low total reflectance due to its nanoscale surface roughness and low index of refraction as recently predicted by theories. Our VA-CNT arrays have a total reflectance R=0.1%, which is 60%-80% lower than the previously reported lowest value, making it the best candidate for an ideal, all-angle, all-wavelength optical absorber.

Paper Details

Date Published: 26 September 2007
PDF: 4 pages
Proc. SPIE 6713, Nanophotonics and Macrophotonics for Space Environments, 67130N (26 September 2007); doi: 10.1117/12.732441
Show Author Affiliations
Z.-P. Yang, Rensselaer Polytechnic Institute (United States)
S. Y. Lin, Rensselaer Polytechnic Institute (United States)
J. A. Bur, Rensselaer Polytechnic Institute (United States)
L. Ci, Rensselaer Polytechnic Institute (United States)
P. M. Ajayan, Rensselaer Polytechnic Institute (United States)

Published in SPIE Proceedings Vol. 6713:
Nanophotonics and Macrophotonics for Space Environments
Edward W. Taylor; David A. Cardimona, Editor(s)

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