Photonics ● Optoelectronic materials ● Quantum
Stéphane Kéna-Cohen is an associate professor who leads the Light-Matter Group and holds the Canada Research Chair in Light-Matter Photonics.
His research specializations are in the physics of solids, optics and advanced materials, leading to development of optoelectronic components.
(514) 340-4711 extension 2421
Optoelectronics
Optoelectronics is everywhere around us: it is essential to the operation of the Internet, used for lighting and displays, and for solar energy generation. It will also be an integral part of future quantum networks and quantum technologies. Professor Kéna-Cohen is developing optoelectronic devices with novel properties using nanostructured, hybrid and molecular materials. The members of his group harness these materials to develop low-cost LEDs, highly efficient solar cells, tunable lasers, and single-photon sources for quantum computing. His laboratory fabricates optoelectronic components from the ground up: including design, fabrication and characterization of the final device.
... NOVEL materials
To study the properties of novel materials and how best to use them within devices, his group uses advanced laser spectroscopy and electrical characterization techniques.
He is particularly interested in light-material interaction and is well-known for his work on polaritons: half-light, half-matter quasiparticles. By manipulating materials on the nanoscale, his group can modify material properties in a way that is useful for conventional devices (modified absorption and emission) and for quantum technologies, which rely on controlling the wavefunction, coherence, and spin of electronic excitations.
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Propagation of polaritons in normal (high) and superfluid (low) regime.
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If fabricating novel optoelectronic devices from the ground-up or studying the physics of novel materials using laser spectroscopy is of interest to you, do not hesitate to contact Prof. Kéna-Cohen for more information.
