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Hyperfine characterization and spin coherence lifetime extension in Pr3+:La-2(WO4)(3)

Lovric, Marko; Glasenapp, Philipp; Suter, Dieter; Tumino, Biagio; Ferrier, Alban; Goldner, Philippe; Sabooni, Mahmood LU ; Rippe, Lars LU and Kröll, Stefan LU (2011) In Physical Review B (Condensed Matter and Materials Physics) 84(10).
Abstract
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 Pr3+:La-2(WO4)(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 (H-3(4)) and one excited state (D-1(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... (More)
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 Pr3+:La-2(WO4)(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 (H-3(4)) and one excited state (D-1(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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
84
issue
10
publisher
American Physical Society
external identifiers
  • wos:000294774800006
  • scopus:80053592738
ISSN
1098-0121
DOI
10.1103/PhysRevB.84.104417
language
English
LU publication?
yes
id
bb44e698-97ce-485f-960c-9e76550a933f (old id 2186696)
date added to LUP
2011-10-24 14:44:11
date last changed
2017-10-08 03:51:25
@article{bb44e698-97ce-485f-960c-9e76550a933f,
  abstract     = {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 Pr3+:La-2(WO4)(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 (H-3(4)) and one excited state (D-1(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.},
  articleno    = {104417},
  author       = {Lovric, Marko and Glasenapp, Philipp and Suter, Dieter and Tumino, Biagio and Ferrier, Alban and Goldner, Philippe and Sabooni, Mahmood and Rippe, Lars and Kröll, Stefan},
  issn         = {1098-0121},
  language     = {eng},
  number       = {10},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Hyperfine characterization and spin coherence lifetime extension in Pr3+:La-2(WO4)(3)},
  url          = {http://dx.doi.org/10.1103/PhysRevB.84.104417},
  volume       = {84},
  year         = {2011},
}