Journal of Nanomedicine & Nanotechnology

Printable holograms and nanophotonic devices via laser ablation

9^th Nano Congress for Next Generation

August 01-02, 2016 Manchester, UK

Haider Butt

University of Birmingham, UK

Scientific Tracks Abstracts: J Nanomed Nanotechnol

Abstract:

Nanostructures due to their vast applications have been the focus of enormous research in the past decade. The key challenge for producing nanostructures based commercial applications is the scaling up of the fabrication process. We present the fabrication of ink based nanostructures by using the fast and commercially viable method of holographic laser ablation. A pulsed laser beam was irradiated onto a glass substrate coated with a thin semi-absorbing coating (ink or gold thin films), which was to be nanopatterned. The beam is passed through the sample and is reflected from the mirror below. Interference occurs between the two laser beams traveling in opposite directions, resulting in an interference pattern which ablates a well-ordered grating on to the surface. The period of the grating is determined by the incident wavelength (λ) and tilt angle (θ) of the sample with respect to normal incidence. In this manner, we recorded various holographic nanopatterns onto thin films of ink/gold. Using this quick, scale and economical method, we produced several nanophotonic devices, such as optical gratings, lenses and holograms.

Biography :

Haider Butt is a Lecturer (Assistant Professor) at the University of Birmingham, UK. Previously, he was a Henslow Research Fellow at the University of Cambridge, from where he received his PhD degree in April 2012. He has published over 45 peer-reviewed journal papers and around 25 conference publications. His research work focuses on photonic devices based on nanostructures like carbon nanotubes, graphene and plasmonic nanostructures. His research work has received substantial recognition in the form of awards and media interviews. He has secured several prestigious research awards including Philip Leverhulme Prize.

Email: h.butt@bham.ac.uk