Can nanotubes make a lens array?

Ranjith Rajasekharan, Haider Butt, Qing Dai, Timothy D. Wilkinson, Gehan A.J. Amaratunga

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


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.

Original languageBritish English
Pages (from-to)OP170-OP173
JournalAdvanced Materials
Issue number23
StatePublished - 19 Jun 2012


  • carbon nanotubes
  • diffraction
  • extremely black objects
  • fresnel lens
  • zones


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