Skip Navigation ANU Home | Search ANU | Directories

Mr Darren Freeman

Position: PhD Student Qualification: BEng(Hons) Address: Laser Physics Centre, RSPhysSE, Australian National University, Canberra, ACT0200 Australia Office: Room J3-18, John Carver Building, 58C Phone: +61 2 6125 4129 Fax: +61 2 6125 0029 Email: daz111@rsphysse.anu.edu.au

Research Interests and Expertise:

• Photonic crystals and nanophotonics
• Focussed ion beam nanofabrication
• Nonlinear optics and ultrafast all-optical switching
• Real-time embedded systems
• Very large scale integration and systems-on-chip
• Solid-state spectroscopy of rare-earth ions
• Quantum computing and fundamental quantum physics

Current Project:

Fabrication of Chalcogenide Glass Photonic Crystal Slabs Using a Focussed Ion Beam:
Photonic crystals are a new class of optical structure with the ability to confine and control the behaviour of light at the scale of its wavelength. Photonic crystal slabs were fabricated by perforating a thin dielectric membrane using a focussed ion beam. Waveguides, resonators, and a variety of other photonic devices may be incorporated into the lattice by engineering the sizes and positions of the holes. By using a highly nonlinear chalcogenide glass, ultra-fast optical switching devices may be developed for optical communications and computing in the future.

Research area links: Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS); Optical Device Fabrication ;

Supervisory panel: Prof. Barry Luther-Davies, Dr. Steve Madden,