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Papers by diana serrano
Journal of Luminescence, 2015
In this work we perform a high-resolution spectroscopic investigation of Eu 3 þ-Ce 3 þ and Pr 3 þ... more In this work we perform a high-resolution spectroscopic investigation of Eu 3 þ-Ce 3 þ and Pr 3 þ-Ce 3 þ codoped Y 2 SiO 5 crystals. Satellite line spectra were recorded at low temperatures around the Eu 3 þ : 7 F 0-5 D 0 and the Pr 3 þ : 3 H 4-1 D 2 transitions. It is observed that the incorporation of Ce 3 þ as a codopant notably changes the Eu 3 þ and Pr 3 þ satellite line patterns. Satellite lines measured in singly doped Eu 3 þ :Y 2 SiO 5 were found at the same spectral positions in Eu 3 þ-Ce 3 þ codoped crystals. These coincident lines were concluded to be due to pairs of Eu 3 þ ions. Extra satellite lines appeared in the codoped crystals, which were assigned to Ce 3 þ related structures such as Ce 3 þ-Eu 3 þ pairs. The analysis of the Pr 3 þ satellite line spectra presents further challenges. Satellite lines associated to Pr 3 þ pairs show weaker intensity, presumably due to the efficient quenching of the Pr 3 þ 1 D 2 emission through crossrelaxation paths (1 D 2-1 G 4 ; 3 H 4-3 F 4). The investigation of the Eu 3 þ and Pr 3 þ satellite line patterns in Y 2 SiO 5 is particularly interesting for their exploitation in rare-earth based quantum computation schemes. & 2015 Elsevier B.V. All rights reserved. 150 μs and 1.5 ms respectively [9]. Moreover, coherence times of the order of minutes [10] and up to hours [11] have been experimentally evidenced for the Pr 3 þ and Eu 3 þ ground state hyperfine transitions in Y 2 SiO 5. Such results confirm the potential of these Contents lists available at ScienceDirect
Journal of Luminescence, 2015
In this work we perform a high-resolution spectroscopic investigation of Eu 3 þ-Ce 3 þ and Pr 3 þ... more In this work we perform a high-resolution spectroscopic investigation of Eu 3 þ-Ce 3 þ and Pr 3 þ-Ce 3 þ codoped Y 2 SiO 5 crystals. Satellite line spectra were recorded at low temperatures around the Eu 3 þ : 7 F 0-5 D 0 and the Pr 3 þ : 3 H 4-1 D 2 transitions. It is observed that the incorporation of Ce 3 þ as a codopant notably changes the Eu 3 þ and Pr 3 þ satellite line patterns. Satellite lines measured in singly doped Eu 3 þ :Y 2 SiO 5 were found at the same spectral positions in Eu 3 þ-Ce 3 þ codoped crystals. These coincident lines were concluded to be due to pairs of Eu 3 þ ions. Extra satellite lines appeared in the codoped crystals, which were assigned to Ce 3 þ related structures such as Ce 3 þ-Eu 3 þ pairs. The analysis of the Pr 3 þ satellite line spectra presents further challenges. Satellite lines associated to Pr 3 þ pairs show weaker intensity, presumably due to the efficient quenching of the Pr 3 þ 1 D 2 emission through crossrelaxation paths (1 D 2-1 G 4 ; 3 H 4-3 F 4). The investigation of the Eu 3 þ and Pr 3 þ satellite line patterns in Y 2 SiO 5 is particularly interesting for their exploitation in rare-earth based quantum computation schemes. & 2015 Elsevier B.V. All rights reserved. 150 μs and 1.5 ms respectively [9]. Moreover, coherence times of the order of minutes [10] and up to hours [11] have been experimentally evidenced for the Pr 3 þ and Eu 3 þ ground state hyperfine transitions in Y 2 SiO 5. Such results confirm the potential of these Contents lists available at ScienceDirect