A super dark material: randomness and porosity in a nanostructure

Z.-P. Yang; S. Y. Lin; J. A. Bur; L. Ci; P. M. Ajayan

doi:10.1117/12.732441

26 September 2007 A super dark material: randomness and porosity in a nanostructure

Z.-P. Yang, S. Y. Lin, J. A. Bur, L. Ci, P. M. Ajayan

Proceedings Volume 6713, Nanophotonics and Macrophotonics for Space Environments; 67130N (2007) https://doi.org/10.1117/12.732441
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

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.

Citation Download Citation

Z.-P. Yang, S. Y. Lin, J. A. Bur, L. Ci, and P. M. Ajayan "A super dark material: randomness and porosity in a nanostructure", Proc. SPIE 6713, Nanophotonics and Macrophotonics for Space Environments, 67130N (26 September 2007); https://doi.org/10.1117/12.732441

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