Welcome to the de Leon Group
The de Leon lab is focused on building quantum devices with color centers in wide bandgap materials. These color centers act as artificial atoms in the solid state, and can have remarkable optical and spin properties. We study nanophotonics, device physics, quantum optics, spectroscopy, and materials science in diamond with the technological goals of realizing quantum networks and nanoscale sensors. We are also interested in exploring fundamental quantum optics, magnetism and interactions between spins, and new material systems for quantum technologies. Our group is highly interdisciplinary, and our work spans optics and photonics, surface science and materials spectroscopy, atomic physics techniques, nanofabrication, optoelectronics, and cryogenics. We are fortunate to have collaborators around the world that are experts in diamond synthesis, processing, and characterization, surface spectroscopy, EPR, STM, and DFT calculations of defects in wide bandgap materials.
We collaborate broadly, and benefit from a large research community focused on quantum science and engineering at Princeton:
April 15, 2021
Our review paper on materials challenges in quantum computing is out in Science
March 23, 2021
Trisha was selected for an NSF GRFP Fellowship! Congratulations!
March 19, 2021
In collaboration with Andrew Houck and Bob Cava, we have demonstrated a new superconducting transmon qubit with coherence times in excess of 0.3 ms!
March 15, 2021
Our paper detailing a proposal for hybrid III-V diamond photonics for neutral SiV quantum nodes was published in Optics Express
November 30, 2020
Our paper reporting optically detected magnetic resonance in the neutral silicon vacancy center was published in Physical Review Letters
August 18, 2020
Our paper on charge state dynamics and optically detected electron spin resonance contrast of shallow nitrogen-vacancy centers in diamond was published in Physical Review Research
August 1, 2020
Welcome to Aveek Dutta and Jared Rovny, new postdocs joining this summer. Congratulations also to Jared, who will be one if the inaugural PQI fellows!
October 1, 2019
Mattias Fitzpatrick was awarded an Intelligence Community Postdoctoral Research Fellowship. Congratulations, Mattias!
May 22, 2019
Ding Huang earned the 2nd place Award for Best Student Poster at the Latsis Diamond Photonics Symposium at EPFL for his poster, "Nanophotonics for telecom quantum networks based on neutral silicon vacancy centers in diamond"
July 6, 2018
Our paper on the neutral silicon vacancy center in diamond was published in Science
Research article: http://science.sciencemag.org/content/361/6397/60