Light and matter interaction at the nanoscale has been explored for a variety of quantum technologies pertaining to information processing, communication and sensing. The color centers, atomic defects in wide band gap semiconductor lattices, have had a prominent role in this research. The favorable combination of optical and spin properties qualifies color centers as fast indistinguishable single-photon sources, long lived qubits and high precision nano-magnetometers. Their integration with photonic devices enables scalability and complex functionality needed for e.g. quantum simulation.
Fabrication of nanophotonic devices containing color centers requires advanced material processing which simultaneously maintains pristine lattice crystallinity and achieves fine feature profiles. Combining traditional and inversely designed photonic modeling, novel fabrication methods, and confocal spectroscopy, we have developed a variety of quantum optical platforms in silicon carbide, diamond and hybrid substrates suitable for scalable quantum photonics and spintronics.
Speaker: Marina Radulaski, UC Davis
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