Journal article

Can Nanotubes Make a Lens Array?

Ranjith Rajasekharan, Haider Butt, Qing Dai, Timothy D Wilkinson, Gehan AJ Amaratunga

ADVANCED MATERIALS | WILEY-V C H VERLAG GMBH | Published : 2012

Abstract

Reflective binary Fresnel lenses fabricated so far all suffer from reflections from the opaque zones and hence degradation in focusing and lensing properties. Here a solution is found to this problem by developing a carbon nanotube Fresnel lens, where the darkest man-made material ever, i.e., low-density vertically aligned carbon nanotube arrays, are exploited. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Grants

Awarded by Engineering and Physical Sciences Research Council


Funding Acknowledgements

The authors thank Samsung Electronics Co., Ltd. (SAIT) for funding this work. This work was also partly funded under the Nokia-Cambridge Strategic Partnership in Nanoscience and Nanotechnology (Energy Programme). Thanks also to Stephen Morris, Joel Carpenter, Flynn Castles, Philip Hands, and Damian Gardner for fruitful discussions.