Welcome to the Photonics Materials and Devices group homepage. This group is led by Professor Martin Dawson, and presently consists of around 18 members of staff and students.
Since 2002 the group has been fabricating gallium-nitride (GaN) micro-LEDs, research motivated by the potential use of these high-density arrays of micro-structured light-emitters in instrumentation and scientific applications. We have fabricated arrays of micro-disk, micro-ring and micro-stripe devices at wavelengths from the ultraviolet (370nm) to green (540nm), and operated them in parallel-addressed (all elements on) and matrix-addressed (individually addressable) formats. These devices are being explored for use in microscopy (sectioned imaging, fluorescence lifetime imaging), lab-on-chip screening, genechip synthesis, light-patterned electrodes, mask-free lithography, and hybrid organic/inorganic LEDs.
The group has been involved in several large multi-partner, multi-disciplinary grants, and is currently involved in the Ultra-parallel Visible Light Communcations (UPVLC) projectan ambitious ?4.6 million project which will explore the transformative technology of communications in an imaginative and foresighted way.