This year marks 50 years that John Sipe has been either a graduate student or a professor in the Department of Physics at the University of Toronto. To celebrate this, there will be a one-day physics symposium on Tuesday February 21st, 2023 at UofT. 

The kick-off meeting of the National Quantum Science and Tecnology Institute will take place in Rome on Thursday, January 26. See you in Rome!

We demonstrate a programmable silicon nano-photonic chip generating frequency-bin entangled photons. Our device allows dense integration, while ensuring high brightness, fidelity, and purity. These results are now available in Nat. Comm. 

We study the main issues preventing the efficient excitation of guided Bloch surface waves using grating couplers, and we present some solutions to increase the coupling efficiency. These results are now available in J. Opt. Soc. Am. B. 

Yesterday, our group went to Stradella to support Luca and his basketball team! A great evening, plenty of sport and fun!

We demonstrate an integrated source of frequency-entangled photon pairs on a silicon photonics chip. The emitter has a coincidence-to-accidental ratio exceeding one thousand. This work is now available in Optics Letters.

We demonstrate undetected-photon-based imaging using light generated via stimulated four-wave mixing within highly nonlinear silicon fiber waveguides. This work is now avialable in Photonics Research.

We used a Mach–Zehnder interferometer to linearly uncouple two resonators and, at the same time, to obtain their efficient nonlinear coupling. This allows for a controllable generation of photon pairs via SFWM. Check this out in Appl. Phys. Lett.