Spectroscopic Investigations of Multiple Environments in Er:CaWO4 through Charge Imbalance
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866915049371598848 |
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| author | Becker, Fabian Curtin, Catherine L. KC, Sudip Schneider, Tim Sauerzopf, Lorenz J. J. Elzeiny, Ibrahim Müller, Kai |
| author_facet | Becker, Fabian Curtin, Catherine L. KC, Sudip Schneider, Tim Sauerzopf, Lorenz J. J. Elzeiny, Ibrahim Müller, Kai |
| contents | We present a detailed spectroscopic study of the $^4\mathrm{I}_{13/2}$ and $^4\mathrm{I}_{15/2}$ Er$^{3+}$ multiplets of Er:CaWO$_4$ grown without a co-dopant. Using photoluminescence and photoluminescence excitation measurements, we find multiple environments into which the Erbium ions are incorporated in the crystal. For the four most prevalent environments, we provide a complete assignment of the $^4\mathrm{I}_{13/2}$ and $^4\mathrm{I}_{15/2}$ sublevel energies. Polarization-dependent absorption and emission spectroscopy allow us to identify the irreducible representations of the states and determine the dipole nature of transitions. In addition, we compare the different relaxation paths within $^4\mathrm{I}_{13/2}$ and $^4\mathrm{I}_{15/2}$ multiplets via line broadening and lifetime measurements. Finally, spectral, lifetime, and polarization measurements indicate similarities between the studied environments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_03948 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spectroscopic Investigations of Multiple Environments in Er:CaWO4 through Charge Imbalance Becker, Fabian Curtin, Catherine L. KC, Sudip Schneider, Tim Sauerzopf, Lorenz J. J. Elzeiny, Ibrahim Müller, Kai Mesoscale and Nanoscale Physics Quantum Physics We present a detailed spectroscopic study of the $^4\mathrm{I}_{13/2}$ and $^4\mathrm{I}_{15/2}$ Er$^{3+}$ multiplets of Er:CaWO$_4$ grown without a co-dopant. Using photoluminescence and photoluminescence excitation measurements, we find multiple environments into which the Erbium ions are incorporated in the crystal. For the four most prevalent environments, we provide a complete assignment of the $^4\mathrm{I}_{13/2}$ and $^4\mathrm{I}_{15/2}$ sublevel energies. Polarization-dependent absorption and emission spectroscopy allow us to identify the irreducible representations of the states and determine the dipole nature of transitions. In addition, we compare the different relaxation paths within $^4\mathrm{I}_{13/2}$ and $^4\mathrm{I}_{15/2}$ multiplets via line broadening and lifetime measurements. Finally, spectral, lifetime, and polarization measurements indicate similarities between the studied environments. |
| title | Spectroscopic Investigations of Multiple Environments in Er:CaWO4 through Charge Imbalance |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2412.03948 |