Mildren group
Diamond Optics, Lasers and Quantum Systems
The tightly-bound, highly symmetric and dense lattice that is diamond provides an excellent substrate for investigating a range of extreme optical phenomena. The group focuses on the nonlinear optical properties of the bulk and surface with a firm view towards research translation to applications. Recently, we have a new thrust to exploit diamond’s particular Raman-tensor symmetry to form the basis for a novel source of quantum randomness.
The project uses a novel approach that simultaneously exploits the symmetry and Raman laser characteristics of Group IV crystals (in this case diamond) to produce low-noise quantum random numbers, with single-shot byte readout and potentially on-chip and with exceptionally high rates. By aligning the polarisation of a pump to the [011] lattice direction, two degenerate Raman modes are addressed to yield a random output polarisation. The scattered photon sets off a cavity-enhanced “avalanche” of near-identical photons that can be detected with conventional optics and light detectors.
Members
- Ondrej Kitzler
- Chris Baldwin
- Mojtaba Moshkani
- Zhenxu Bai
- Doug Little
Collaborators
- Alexei Gilchrist
- David Spence
- James Downes
Alumni
- Aaron McKay (now at Finisar Pty Ltd)
- Alex Sabella (DST Group)
- Ondrej Kitzler
- Hadiya Jasbeer
- Soumya Sarang
- Matthew Clarke
- Robert Williams
- Sergei Antipov
Publications
Please refer here.