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.
| Original language | English |
|---|---|
| Journal | Advanced Materials |
| Volume | 24 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 19 Jun 2012 |
Keywords
- carbon nanotubes
- diffraction
- extremely black objects
- fresnel lens
- zones
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering