Spectroscopy, crystal-field, and transition intensity analyses of the C3v(O2−) centre in Er3+ doped CaF2 crystals
Erbium ions in crystals show considerable promise for the technologies that will form the backbone of future networked quantum information technology. Despite advances in leveraging erbium’s fibre-compatible infrared transition for classical and quantum applications, the transitions are, in general,...
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Elsevier
2024-12-01
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| Series: | Optical Materials: X |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590147824000779 |
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| author | M.D. Moull J.B.L. Martin T.G.M. Newman A.L. Jeffery J.G. Bartholomew J.-P.R. Wells M.F. Reid |
| author_facet | M.D. Moull J.B.L. Martin T.G.M. Newman A.L. Jeffery J.G. Bartholomew J.-P.R. Wells M.F. Reid |
| author_sort | M.D. Moull |
| collection | DOAJ |
| description | Erbium ions in crystals show considerable promise for the technologies that will form the backbone of future networked quantum information technology. Despite advances in leveraging erbium’s fibre-compatible infrared transition for classical and quantum applications, the transitions are, in general, not well understood. We present detailed absorption and laser site-selective spectroscopy of the C3v(O2−) centre in CaF2:Er3+ as an interesting erbium site case study. The 4I15/2Z1→4I13/2Y1 transition has a low-temperature inhomogeneous linewidth of 1 GHz with hyperfine structure observable from the 167Er isotope. A parametrized crystal-field Hamiltonian is fitted to 34 energy levels and the two ground state magnetic splitting factors. The wavefunctions are used to perform a transition intensity analysis and electric-dipole parameters are fitted to absorption oscillator strengths. Simulated spectra for the 4I11/2→4I15/2 and 4I13/2→4I15/2 inter-multiplet transitions are in excellent agreement with the experimentally measured spectra. The 4I13/2 excited state lifetime is 25.0ms and the intensity calculation is in excellent agreement with this value. |
| format | Article |
| id | doaj-art-67ffcf9ef4bd4f3ea921878e055a4bd6 |
| institution | Kabale University |
| issn | 2590-1478 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Optical Materials: X |
| spelling | doaj-art-67ffcf9ef4bd4f3ea921878e055a4bd62024-12-13T11:01:05ZengElsevierOptical Materials: X2590-14782024-12-0124100365Spectroscopy, crystal-field, and transition intensity analyses of the C3v(O2−) centre in Er3+ doped CaF2 crystalsM.D. Moull0J.B.L. Martin1T.G.M. Newman2A.L. Jeffery3J.G. Bartholomew4J.-P.R. Wells5M.F. Reid6The School of Physical and Chemical Sciences, University of Canterbury, PB4800 Christchurch 8140, New Zealand; The Dodd-Walls Centre for Photonic and Quantum Technologies, New ZealandThe School of Physical and Chemical Sciences, University of Canterbury, PB4800 Christchurch 8140, New Zealand; The Dodd-Walls Centre for Photonic and Quantum Technologies, New ZealandCentre for Engineered Quantum Systems, School of Physics, The University of Sydney, NSW, Australia; The University of Sydney Nano Institute, The University of Sydney, NSW, AustraliaCentre for Engineered Quantum Systems, School of Physics, The University of Sydney, NSW, AustraliaCentre for Engineered Quantum Systems, School of Physics, The University of Sydney, NSW, Australia; The University of Sydney Nano Institute, The University of Sydney, NSW, AustraliaThe School of Physical and Chemical Sciences, University of Canterbury, PB4800 Christchurch 8140, New Zealand; The Dodd-Walls Centre for Photonic and Quantum Technologies, New ZealandThe School of Physical and Chemical Sciences, University of Canterbury, PB4800 Christchurch 8140, New Zealand; The Dodd-Walls Centre for Photonic and Quantum Technologies, New Zealand; Corresponding author at: The School of Physical and Chemical Sciences, University of Canterbury, PB4800 Christchurch 8140, New Zealand.Erbium ions in crystals show considerable promise for the technologies that will form the backbone of future networked quantum information technology. Despite advances in leveraging erbium’s fibre-compatible infrared transition for classical and quantum applications, the transitions are, in general, not well understood. We present detailed absorption and laser site-selective spectroscopy of the C3v(O2−) centre in CaF2:Er3+ as an interesting erbium site case study. The 4I15/2Z1→4I13/2Y1 transition has a low-temperature inhomogeneous linewidth of 1 GHz with hyperfine structure observable from the 167Er isotope. A parametrized crystal-field Hamiltonian is fitted to 34 energy levels and the two ground state magnetic splitting factors. The wavefunctions are used to perform a transition intensity analysis and electric-dipole parameters are fitted to absorption oscillator strengths. Simulated spectra for the 4I11/2→4I15/2 and 4I13/2→4I15/2 inter-multiplet transitions are in excellent agreement with the experimentally measured spectra. The 4I13/2 excited state lifetime is 25.0ms and the intensity calculation is in excellent agreement with this value.http://www.sciencedirect.com/science/article/pii/S2590147824000779Rare-earthCrystal-field analysisSpectroscopyErbiumCaF2Quantum technologies |
| spellingShingle | M.D. Moull J.B.L. Martin T.G.M. Newman A.L. Jeffery J.G. Bartholomew J.-P.R. Wells M.F. Reid Spectroscopy, crystal-field, and transition intensity analyses of the C3v(O2−) centre in Er3+ doped CaF2 crystals Optical Materials: X Rare-earth Crystal-field analysis Spectroscopy Erbium CaF2 Quantum technologies |
| title | Spectroscopy, crystal-field, and transition intensity analyses of the C3v(O2−) centre in Er3+ doped CaF2 crystals |
| title_full | Spectroscopy, crystal-field, and transition intensity analyses of the C3v(O2−) centre in Er3+ doped CaF2 crystals |
| title_fullStr | Spectroscopy, crystal-field, and transition intensity analyses of the C3v(O2−) centre in Er3+ doped CaF2 crystals |
| title_full_unstemmed | Spectroscopy, crystal-field, and transition intensity analyses of the C3v(O2−) centre in Er3+ doped CaF2 crystals |
| title_short | Spectroscopy, crystal-field, and transition intensity analyses of the C3v(O2−) centre in Er3+ doped CaF2 crystals |
| title_sort | spectroscopy crystal field and transition intensity analyses of the c3v o2 centre in er3 doped caf2 crystals |
| topic | Rare-earth Crystal-field analysis Spectroscopy Erbium CaF2 Quantum technologies |
| url | http://www.sciencedirect.com/science/article/pii/S2590147824000779 |
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