Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session G00: Poster Session I (2pm- 5pm CST)
2:00 PM,
Tuesday, March 15, 2022
Room: McCormick Place Exhibit Hall F1
Abstract: G00.00229 : Purcell-enhanced emission of erbium ions in nanocrystals using a tunable Fabry-Perot resonator
Presenter:
Zach M Brown
(Texas Tech University)
Authors:
Zach M Brown
(Texas Tech University)
Jacob R Slocum
(Department of Physics and Astronomy, Texas Tech University, Lubbock, TX 79409, USA)
Malsha Udayakantha
(Department of Chemistry, Texas A&M University, College Station, TX 77843, USA)
Rachel Davidson
(Department of Chemistry, Texas A&M University, College Station, TX 77843, USA)
Hira Farooq
(Department of Physics and Astronomy, Texas Tech University, Lubbock, TX 79409, USA)
Ayrton Bernussi
(Department of Electrical and Computer Engineering & NanoTech Center, Texas Tech University, Lubbock, TX 79409, USA)
Sarbajit Banerjee
(Department of Chemistry, Texas A&M University, College Station, TX 77843, USA)
Myoung-Hwan Kim
(Department of Physics and Astronomy, Texas Tech University, Lubbock, TX 79409, USA)
Rare-earth spin qubits have gained attention as a promising quantum sensing platform due to their narrow energy level transitions, long optical spin coherence lifetimes, and on-chip integrability. However, the lifetime of spin coherencies suffers from interactions between the qubits and noisy environments. Resonant cavities have been used to enhance spin-photon interactions. Here, we demonstrate an active resonant cavity platform to introduce a Purcell-enhanced emission of erbium ions doped in yttrium orthosilicate and oxychlorides nanocrystals. Erbium ion-doped nanocrystals are located on the cavity utilizing a thin film of vanadium dioxide on a gold back-mirror and sapphire substrate, which acts as a tunable Fabry-Perot resonator for the erbium atomic level transitions near the telecom wavelength of 1550 nm. Vanadium dioxide is an active material whose optical properties change dramatically at a metal-insulator phase transition, lending control over the cavity mode. We observe an enhanced fluorescence lifetime and spin relaxation rate of an ensemble of erbium ions at a telecom wavelength of 1536 nm at low temperature with an external magnetic field, which induces a 3-level energy system. Such reconfigurable cavity platforms benefit the development of on-chip quantum devices.
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