Hyperfine structure and homogeneous broadening in Pr3+:KY(WO4)2

H. L. Xu, M. Nilsson, S. Ohser, N. Rauhut, S. Kröll, M. Aguiló, and F. Díaz
Phys. Rev. B 70, 214115 – Published 30 December 2004

Abstract

As part of a search for suitable materials for coherent quantum operations, relaxation times and hyperfine structure of the D21(1)H43(1) transition in Pr3+:KY(WO4)2 (0.29 at. %) at 4 K have been obtained using photon-echo and spectral hole burning techniques. The homogeneous linewidth and the effect of excitation-induced dephasing were measured using two-pulse photon-echo techniques. Linewidths of 23.4±1.0 and 17.6±0.9kHz were obtained in the absence and presence of an external magnetic field of about 9 mT. The radiative lifetime (T1) of the D21 state was measured to be 43±2μs using time-resolved laser-induced fluorescence and three-pulse photon-echo measurements. The transmission hole spectra were measured and directly yielded the quadrupole level splitting in the D21 (3.77±0.03 and 4.58±0.04MHz) and H43 (17.1±0.1 and 33.2±0.3MHz) states. The spectral hole lifetime due to population redistribution between the ground-state nuclear levels was also determined to be 70±10ms. A strong dipole-dipole interaction observed in this crystal opens for potential applications in quantum computing schemes for performing quantum logic operations, but the short dephasing time makes it less useful in data storage applications.

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  • Received 30 June 2004

DOI:https://doi.org/10.1103/PhysRevB.70.214115

©2004 American Physical Society

Authors & Affiliations

H. L. Xu, M. Nilsson, S. Ohser, N. Rauhut, and S. Kröll

  • Department of Physics, Lund Institute of Technology, P.O. Box 118, S-22100 Lund, Sweden

M. Aguiló and F. Díaz

  • Laboratori de Fisica Aplicada i Cristallografia, Universitat Rovira i Virgili, 43007 Tarragona, Spain

See Also

Hole-burning techniques for isolation and study of individual hyperfine transitions in inhomogeneously broadened solids demonstrated in Pr3+:Y2SiO5

Mattias Nilsson, Lars Rippe, Stefan Kröll, Robert Klieber, and Dieter Suter
Phys. Rev. B 70, 214116 (2004)

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Vol. 70, Iss. 21 — 1 December 2004

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