4f95d-4f10 transitions of Ho3+ ions in LiYF4 single crystals

Evangelia Sarantopoulou; Z. Kollia; Alkiviadis Constantinos Cefalas

doi:10.1117/12.347614

7 May 1999 4f⁹5d-4f¹⁰ transitions of Ho³⁺ions in LiYF₄ single crystals

Evangelia Sarantopoulou, Z. Kollia, Alkiviadis Constantinos Cefalas

Proceedings Volume 3571, Tenth International School on Quantum Electronics: Laser Physics and Applications; (1999) https://doi.org/10.1117/12.347614
Event: 10th International School on Quantum Electronics: Lasers: Physics and Applications, 1998, Varna, Bulgaria

Abstract

The laser induced fluorescence spectrum (LIF) of the LiYF₄:Ho³⁺ (YLF:Ho) single crystals, pumped by the molecular fluorine pulsed discharge molecular laser at 157.6 nm was obtained in the vacuum ultraviolet (VUV) and ultraviolet (UV) regions of the spectrum. The observed transitions originate from the levels and the edge of the 4f⁹5d electronic configuration and they are assigned to the 4f⁹5d yields 4f¹⁰ interconfigurational transitions. The LIF spectra can be explained provided that phonon trapping is taking place within the Stark components of the 4f⁹5d electronic configuration. The absorption spectrum of the crystal samples in the VUV was obtained as well. The electric crystal field splits all the levels of the 4f⁹5d mixed configuration. We observed five main transitions between the ground level ⁵I₈ of the 4f⁹ electronic configuration and the Stark components of the levels of the 4f⁹5d electronic configuration in the spectral range between 118 - 158 nm, and four weaker transitions in the spectral range from 158 - 186 nm.

Citation Download Citation

Evangelia Sarantopoulou, Z. Kollia, and Alkiviadis Constantinos Cefalas "4f⁹5d-4f¹⁰ transitions of Ho³⁺ions in LiYF₄ single crystals", Proc. SPIE 3571, Tenth International School on Quantum Electronics: Laser Physics and Applications, (7 May 1999); https://doi.org/10.1117/12.347614

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