Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session Q71: Improving Coherence for Quantum Devices
3:00 PM–6:00 PM,
Wednesday, March 16, 2022
Room: Hyatt Regency Hotel -Jackson Park C
Sponsoring
Unit:
DMP
Chair: Yu Zhang, Los Alamos National Lab
Abstract: Q71.00004 : Structural and Optical Properties of Erbium-doped Anatase TiO2 Thin Films on LaAlO3 (001)*
4:24 PM–4:36 PM
Presenter:
Kidae Shin
(Yale University)
Authors:
Kidae Shin
(Yale University)
Isaiah Gray
(Princeton University)
Frederick J Walker
(Yale University)
Jeff D Thompson
(Princeton University)
Charles H Ahn
(Yale University)
Here, we report on the MBE growth of Er-doped anatase TiO2 thin films on LaAlO3 (001) substrates with varying doping concentrations. We characterize them using x-ray diffraction and photoluminescence (PL) measurements to investigate how factors such as the Er concentration, buffer layer and delta-doping affect the optical inhomogeneous linewidths of Er3+ ions. Initial results show Er3+ PL from two different sites in TiO2 and one site in LaAlO3, with PL intensities consistent with the doping concentration.
*This work is supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Co-design Center for Quantum Advantage (C2QA) under contract number DE-SC0012704.
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