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Welcome to femtoQthe facility located at Polytechnique Montréal where we develop new methods and novel short-pulse laser technologies to study the quantumness of light and matter on femtosecond timescales. femtoQ is created and directed by Prof. Denis Seletskiy with core funding from NSERC Canada Research Chair in Ultrafast and Quantum Photonics.

In order to derive ever faster and more precise photonic technologies of tomorrow we must first understand how light and matter interact at the most fundamental level. Quantum physics offers us the most precise description of this, however the current tools of quantum optics are not applicable to these shortest time intervals, namely time-domain description of light-matter interaction at the quantum level is largely lacking and so does the technology

How short is too short? For most photonic devices operating around the visible-near-IR spectrum, the natural timescale of interactions is of few femtoseconds (1 fs = 10-15 seconds), set primarily by the duration of the single oscillation of the light wave and the inertia of free electrons in matter.   

Our team at femtoQ studies these regimes by exploiting quantum-enhanced laser technologies and novel quantum metrology tools we develop in house. To learn more, we invite you to explore the research and lab services as well as to read our publications. 

Finally, feel free to explore the site and get in touch with us if you have any questions or you want to work together on the quantum technologies of tomorrow!