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Cambridge CDT Student Publishes Article on Colour Holograms using Plasmonic Nanoparticles

Cambridge Student Calum Williams currently in the first year of his PhD, has successfully published his research on Colour holograms using plasmonic nanoparticles as a research highlight in the Proceedings of the National Academy of Sciences (PNAS)

Under the supervision of Professor Tim Wilkinson* at the Centre of Molecular Materials for Photonics and Electronics (CMMPE) group, Calum along with other group members, has demonstrated for the first time, a two colour hologram patterned in plasmonic silver nano rods (or antennae). The rods were fabricated on the nanometre scale using ebeam lithography. The dimensions of rods determines which wavelength of light can be used to excite a surface plasmonic resonance. This resonance is then used to diffract the light into a pre-determined image. In this device, two separate holograms were encoded using two different lengths of nano-rod, giving separate holographic replay images depending on the wavelength of the illumination.

For more information, please click on the link below:

http://www.cam.ac.uk/research/news/nanotechnology-used-to-create-next-generation-holograms-for-information-storage

*Professor Tim Wilkinson is one of the directors of the CMMPE group and also serves as one of the CDT supervisors