Nanophotonic optomechanical sensors

We have recently demontrated nanocavity optomechanical devices based on silicon photonics which can detect sources of torque with unprecedented sensitivity. These structures are currently being used to probe nanomagnetic phenomena and demomstrate magnetic field sensors with unique combination of spatial resolution, sensitivity and dynamic range. Several projects are building on this success: creating sensors for detecting optical angular momentum…

Nanophotonics with 2D materials

2D materials, the most famous of which is graphene, are promising for sensing and quantum technology. Hexagonal boron nitride (hBN) is a layered 2D material that is exciting thanks to its ability to host quantum emitters / single photon sources. By combining hBN with silicon photonic devices, we recently demonstrated the very first cavity optomechanical system with…

Paul Barclay

Paul Barclay Associate Professor, Department of Physics and Astronomy, University of Calgary Member of the Institute for Quantum Science and Technology Project co-leader at the National Research Council Nanotechnology Research Centre Postdoc: Hewlett-Packards Labs, Information and Quantum Systems Lab, Palo Alto, 2008 – 2010 Ph. D.: California Institute of Technology, Applied Physics, 2007 Advisor: Oskar Painter Thesis: “Fiber-coupled nanophotonic devices for…

Latest publication in Nature Communications

Check out Matt and David’s latest discovery: a technique for interfering light with vastly different different wavelengths. They accomplish this by coupling both optical fields to the same mechanical resonator. The phase of each field affects the motion of the resonator, resulting in an effective interaction between both optical inputs. Two-colour interferometry and switching through…