Quantum light matter interfaces at the nanoscale
We couple solid-state quantum emitters (semiconductor nanocrystals, nanodiamonds) to tapered optical nanofibers and photonic waveguides, to realize efficient single-photon sources and to control light matter interaction at the single-photon level.
During the last decade, multiple nano-optics and nanophotonics devices that outperform their traditional counterparts (faster operations, lower energy consumption) have been demonstrated.
The challenge is now to couple different devices at the nanometric scale so that they surpass their individual properties. Such hybrid systems give access to new physical effects and to innovative devices. In the group of Hanna Le Jeannic, we investigate the coupling of optical fibers, and photonic waveguides more generally, to various solid-state quantum emitters such as semiconductor nanocrystals and nanodiamonds.
What we work on
High-quality semiconductor and perovskite nanocrystals
Quantum dots based on II–VI semiconductor and perovskite nanocrystals can emit light at room temperature and are synthesized via wet chemistry. We characterize their emission to find room-temperature-compatible single-photon sources.
Nanophotonics structures with optical nanofibers
One of the most commonly faced problems with semiconductor single-photon sources is implementing fluorescence collection with high efficiency. We are specialized in tapered optical nanofiber engineering to collect single-photon emission.
Quantum nano-emitters coupled to nanofibers
To collect but also to probe nano-emitters, we deposit them on our tapered optical nanofiber and collect their emission in a single guided mode.
Latest from the group
We do not have funded positions open at this time. If you have secured your own funding and want to join the team, or if you want to discuss applying for funding with the team, please contact Dr. Hanna Le Jeannic.
Get in touch →Selected work
