Optically addressing single rare-earth ions in a nanophotonic cavity
Tian Zhong, Jonathan M. Kindem, John G. Bartholomew, Jake Rochman,, Ioana Craiciu, Varun Verma, Sae Woo Nam, Francesco Marsili, Matthew D. Shaw,, Andrew D. Beyer, Andrei Faraon
TL;DR
This paper demonstrates the optical detection and control of single Nd ions in a nanophotonic cavity, showing enhanced emission and coherent control, paving the way for quantum information applications.
Contribution
It introduces a method for optically addressing single rare-earth ions in a nanophotonic cavity with strong coupling and coherent control capabilities.
Findings
Strong Purcell enhancement of emission rate
Observation of coherent optical Rabi oscillations
Potential for quantum network applications
Abstract
We demonstrate optical probing of spectrally resolved single Nd rare-earth ions in yttrium orthovanadate. The ions are coupled to a photonic crystal resonator and show strong enhancement of the optical emission rate via the Purcell effect, resulting in near radiatively limited single photon emission. The measured high coupling cooperativity between a single photon and the ion allows for the observation of coherent optical Rabi oscillations. This could enable optically controlled spin qubits, quantum logic gates, and spin-photon interfaces for future quantum networks.
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