Epitaxial CeO₂ Thin Films as Zero-Nuclear-Spin Hosts for Rare-Earth Quantum Emitters

CeO₂ films doped with Er³⁺ show ms-range PL lifetimes vs μs for Tm³⁺. DFT reveals Tm 4f–O 2p hybridization opens non-radiative channels, absent in Er. CeO₂'s zero nuclear spin makes it a promising magnetically clean quantum emitter host.

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Work in progress! Dr. Aitana Tarazaga, Dr Javier Martín, PhD student @adamskirunski and some fellow researchers are searching for laser-induced emitters in hBN in a controlled way.
#quantumemitters #hbn #nanophotonics #quantumoptics #laserphysics #quantumresearch #science #oviedo