Paul Barclay

Barclay lab research develops nanophotonic devices for quantum technologies: sensors with unprecedented performance, memories for building a quantum internet, and switches to route photons in quantum networks. To create these novel technologies, group members have become leaders in both the invention of nanofabrication techniques and the demonstration of quantum nanophotonic experiments.

Examples of recent research projects include:

Diamond quantum photonic devices
Spin qubits in diamond are unrivaled in their ability to store quantum information at room temperature. Photonic devices fabricated from diamond are needed to link these qubits for quantum computing and communication technologies.

Diamond optomechanics
Building on the fabrication innovations described above, the Barclay lab developed the field of diamond optomechanics: using light to manipulate mechanical resonators fabricated from diamond.
Diamond is arguably the ultimate material for optomechanical devices. The Barclay lab's high quality diamond devices have opened the door to new experiments in optomechanical information processing.

Spin-optomechanics
The Barclay lab recently demonstrated optomechanical control of diamond spin qubit quantum memories. This entirely new approach for connecting light to diamond spins bridges a gap between two fields for the first time.

Nanoscale optomechanical sensors
The ability of optomechanical devices to precisely sense mechanical motion can be harnessed to detect otherwise unmeasurable physical phenomena. The Barclay lab invents new types of optomechanical device to probe nanoscale condensed matter systems.

hBN nanophotonics:
2D materials have the potential to advance approaches for building quantum sensors and quantum communication devices. Barclay lab members are working to realise photonic devices from these emerging materials.