Journal of Luminescence

Calculation and analysis of hyperfine and quadrupole interactions in praseodymium-doped

O. Guillot-Noël, Y. Le Du, Florian Beaudoux, E. Antic-Fidancev, Michael F. Reid, R. Marino, Julien Lejay, Alban Ferrier, Philippe Goldner

Published Dec 24, 2009• 13 citations

Publisher

DOI: 10.1016/j.jlumin.2009.12.023

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Journal of Luminescence

Calculation and analysis of hyperfine and quadrupole interactions in praseodymium-doped

O. Guillot-Noël, Y. Le Du, Florian Beaudoux, E. Antic-Fidancev, Michael F. Reid, R. Marino, Julien Lejay, Alban Ferrier, Philippe Goldner

Published Dec 24, 2009• 13 citations

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Spin Hamiltonian characterization and refinement for Pr 3 + :YAlO 3 and Pr 3 + :Y 2 SiO 5

Marko Lovrić, Philipp Glasenapp, Dieter Suter

Rare-earth ions in dielectric crystals play an important role in high-resolution laser spectroscopy and are interesting candidates for storing quantum states of photons. We characterize the praseodymium hyperfine interaction of the ground-state ( ${}^{3}$ H ${}_{4}$ ) and one excited-state ( ${}^{1}$ D ${}_{2}$ ) for two important compounds: praseodymium doped in yttrium aluminum perovskite and praseodymium doped in yttrium orthosilicate. The spin Hamiltonian parameters are determined by numerical analysis of Raman-heterodyne spectra, which were collected for a range of static external magnetic field strengths and orientations. For Pr ${}^{3+}$ :YAlO ${}_{3}$ , we present a full analysis without restrictions for the Zeeman and quadrupole tensors, and our new characterization for Pr ${}^{3+}$ :Y ${}_{2}$ SiO ${}_{5}$ resolves a controversy in the literature.Rare-earth ions in dielectric crystals play an important role in high-resolution laser spectroscopy and are interesting candidates for storing quantum states of photons. We characterize the praseodymium hyperfine interaction of the ground-state (${}^{3}$H${}_{4}$) and one excited-state (${}^{1}$D${}_{2}$) for two important compounds: praseodymium doped in yttrium aluminum perovskite and praseodymium doped in yttrium orthosilicate. The spin Hamiltonian parameters are determined by numerical analysis of Raman-heterodyne spectra, which were collected for a range of static external magnetic field strengths and orientations. For Pr${}^{3+}$:YAlO${}_{3}$, we present a full analysis without restrictions for the Zeeman and quadrupole tensors, and our new characterization for Pr${}^{3+}$:Y${}_{2}$SiO${}_{5}$ resolves a controversy in the literature.

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Rare-earth ions in dielectric crystals are interesting candidates for storing quantum states of photons. A limiting factor on the optical density and thus the conversion efficiency is the distortion introduced in the crystal by doping elements of one type into a crystal matrix of another type. Here we investigate the system Pr ${}^{3+}$ :La ${}_{2}$ (WO ${}_{4}$ ) ${}_{3}$ , where the similarity of the ionic radii of Pr and La minimizes distortions due to doping. We characterize the praseodymium hyperfine interaction of the ground-state ( ${}^{3}$ $H$ ${}_{4}$ ) and one excited state ( ${}^{1}$ $D$ ${}_{2}$ ) and determine the spin Hamiltonian parameters by numerical analysis of Raman-heterodyne spectra, which were collected for a range of static external magnetic-field strengths and orientations. On the basis of a crystal-field analysis, we discuss the physical origin of the experimentally determined quadrupole and Zeeman tensor characteristics. We show the potential for quantum memory applications by measuring the spin coherence lifetime in a magnetic field that is chosen such that additional magnetic fields do not shift the transition frequency in first order. Experimental results demonstrate a spin coherence lifetime of 158 ms --- almost 3 orders of magnitude longer than in zero field.Rare-earth ions in dielectric crystals are interesting candidates for storing quantum states of photons. A limiting factor on the optical density and thus the conversion efficiency is the distortion introduced in the crystal by doping elements of one type into a crystal matrix of another type. Here we investigate the system Pr${}^{3+}$:La${}_{2}$(WO${}_{4}$)${}_{3}$, where the similarity of the ionic radii of Pr and La minimizes distortions due to doping. We characterize the praseodymium hyperfine interaction of the ground-state (${}^{3}$$H$${}_{4}$) and one excited state (${}^{1}$$D$${}_{2}$) and determine the spin Hamiltonian parameters by numerical analysis of Raman-heterodyne spectra, which were collected for a range of static external magnetic-field strengths and orientations. On the basis of a crystal-field analysis, we discuss the physical origin of the experimentally determined quadrupole and Zeeman tensor characteristics. We show the potential for quantum memory applications by measuring the spin coherence lifetime in a magnetic field that is chosen such that additional magnetic fields do not shift the transition frequency in first order. Experimental results demonstrate a spin coherence lifetime of 158 ms --- almost 3 orders of magnitude longer than in zero field.

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Philippe Goldner, O. Guillot-Noël

Journal of Alloys and CompoundsApr 17, 20076 citations

{}^{3}

{}_{4}

) and one excited-state (

{}^{1}

{}_{2}

) for two important compounds: praseodymium doped in yttrium aluminum perovskite and praseodymium doped in yttrium orthosilicate. The spin Hamiltonian parameters are determined by numerical analysis of Raman-heterodyne spectra, which were collected for a range of static external magnetic field strengths and orientations. For Pr

{}^{3+}

:YAlO

{}_{3}

, we present a full analysis without restrictions for the Zeeman and quadrupole tensors, and our new characterization for Pr

{}^{3+}

{}_{2}

SiO

{}_{5}

resolves a controversy in the literature.

{}^{3+}

:La

{}_{2}

(WO

{}_{4}

)

{}_{3}

, where the similarity of the ionic radii of Pr and La minimizes distortions due to doping. We characterize the praseodymium hyperfine interaction of the ground-state (

{}^{3}

H

{}_{4}

) and one excited state (

{}^{1}

D

{}_{2}

) and determine the spin Hamiltonian parameters by numerical analysis of Raman-heterodyne spectra, which were collected for a range of static external magnetic-field strengths and orientations. On the basis of a crystal-field analysis, we discuss the physical origin of the experimentally determined quadrupole and Zeeman tensor characteristics. We show the potential for quantum memory applications by measuring the spin coherence lifetime in a magnetic field that is chosen such that additional magnetic fields do not shift the transition frequency in first order. Experimental results demonstrate a spin coherence lifetime of 158 ms --- almost 3 orders of magnitude longer than in zero field.