High contrast holograms using nanotube forest

Montelongo, Y and Chen, B and Butt, H and Robertson, J and Wilkinson, TD (2013) High contrast holograms using nanotube forest. Applied Physics Letters, 103. ISSN 0003-6951

Abstract

Nanotube forest behaves as highly absorbent material when they are randomly placed in sub-wavelength scales. Furthermore, it is possible to create diffractive structures when these bulks are patterned in a substrate. Here, we introduce an alternative to fabricate intensity holograms by patterning fringes of nanotube forest on a substrate. The result is an efficient intensity hologram that is not restricted to sub-wavelength patterning. Both the theoretical and experimental analysis was performed with good agreement. The produced holograms show a uniform behaviour throughout the visible spectra. © 2013 AIP Publishing LLC.