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arXiv · 2409.15625

Laser Site-Selective Spectroscopy and Magnetic Hyperfine Splittings of Ho$^{3+}$ doped Y$_{2}$SiO$_{5}$

Sagar Mothkuri·Michael F. Reid·Jon-Paul R. Wells·Eloïse Lafitte-Houssat·Alban Ferrier·Philippe Goldner
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Abstract

Laser site-selective spectroscopy and high-resolution absorption measurements have been used to determine 51 crystal-field energy levels for one of the Ho$^{3+}$ centres in Y$_{2}$SiO$_{5}$. This centre is denoted as Site 2 and has been tentatively assigned as the seven-fold coordinated centre. High resolution absorption measurements reveal complex hyperfine patterns that obey and approximate selection rule. The application of a magnetic field along the three optical axes reveals the presence of avoided crossings below 0.5 Tesla, in both the ground and excited states.

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Sagar Mothkuri, Michael F. Reid, Jon-Paul R. Wells, Eloïse Lafitte-Houssat, Alban Ferrier, Philippe Goldner. 2024-09-24. Laser Site-Selective Spectroscopy and Magnetic Hyperfine Splittings of Ho$^{3+}$ doped Y$_{2}$SiO$_{5}$. https://doi.org/10.1016/j.jlumin.2024.120705

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