We report on a high-resolution optical and magneto-optical spectroscopy, luminescence, and electron paramagnetic resonance (EPR) studies of yttrium orthophosphate single crystals doped with erbium, which are promising telecom-wavelength materials for applications in quantum electronics and quantum information processing. An observation of the hyperfine structure in optical spectra of Er-167 isotope in Er : YPO4 is presented. Energies and symmetries of 40 crystal-field levels of Er3+ in Er : YPO4 and g factors of some of them were determined and successfully modeled on the basis of crystal-field calculations. The obtained set of crystal-field parameters was used in modeling the hyperfine structure observed in the optical and EPR spectra of Er : YPO4 single crystals.
Crystal field and hyperfine structure of Er3+167 in YPO4 :Er single crystals: High-resolution optical and EPR spectroscopy
Bettinelli, M.;
2019-01-01
Abstract
We report on a high-resolution optical and magneto-optical spectroscopy, luminescence, and electron paramagnetic resonance (EPR) studies of yttrium orthophosphate single crystals doped with erbium, which are promising telecom-wavelength materials for applications in quantum electronics and quantum information processing. An observation of the hyperfine structure in optical spectra of Er-167 isotope in Er : YPO4 is presented. Energies and symmetries of 40 crystal-field levels of Er3+ in Er : YPO4 and g factors of some of them were determined and successfully modeled on the basis of crystal-field calculations. The obtained set of crystal-field parameters was used in modeling the hyperfine structure observed in the optical and EPR spectra of Er : YPO4 single crystals.
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