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- W1965850978 abstract "Detailed site-selective spectroscopy has been performed as a function of temperature on the ${}^{7}{F}_{0}{ensuremath{leftrightarrow}}^{5}{D}_{0}$ transition of ${mathrm{Eu}}^{3+}:{mathrm{Y}}_{2}{mathrm{SiO}}_{5}$ for ${mathrm{Eu}}^{3+}$ concentrations of 0.02%, 0.1%, 0.5%, and 1%. Time-domain optical dephasing, spectral hole lifetimes, anisotropic absorption coefficients, inhomogeneous linewidths, and fluorescence lifetimes for ${mathrm{Eu}}^{3+}$ ions at both crystallographic sites were measured. The temperature dependence of the optical dephasing, transition energy, and linewidth of the ${}^{7}{stackrel{ensuremath{rightarrow}}{{F}_{0}}}^{5}{D}_{0}$ absorption was measured and interpreted in terms of Raman scattering of phonons. Photon echo measurements of optical dephasing gave ${T}_{2}$ values as long as 2.6 ms, approaching the limit set by the fluorescence decay time. Spectral hole lifetimes were measured for temperatures from 2 K to 18 K, with observed lifetimes varying from 1 s at 18 K to an estimated value of greater than 20 days at 2 K. Anisotropic absorption coefficients were measured, and an increase in ${mathrm{Eu}}^{3+}$ concentration from 0.02% to 7% produced an increase in the inhomogeneous linewidth ${ensuremath{Gamma}}_{mathrm{inh}}$ from 0.5 GHz to ensuremath{sim}150 GHz, indicating that ${mathrm{Eu}}^{3+}$ doping induces significant strain in the crystal. New determinations of many energy levels of ${}^{7}{F}_{J}$ multiplets have been made for $J=0$ to 6." @default.
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- W1965850978 date "2003-08-25" @default.
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- W1965850978 title "Temperature and concentration dependence of optical dephasing, spectral-hole lifetime, and anisotropic absorption in<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant=normal>Eu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mo>:</mml:mo><mml:mi mathvariant=normal>Y</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub…" @default.
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- W1965850978 doi "https://doi.org/10.1103/physrevb.68.085109" @default.
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