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Growth and Spectroscopic Properties of Er:Yab Single Crystals |
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| Authors: | I Földvári E Beregi R Capelletti A Baraldi A Munoz R Sosa |
| Institution: | 1. Research Institute for Solid State Physics and Optics, HAS, Konkoly-Thege u. 29–33. H-1121, Budapest, Hungary;2. foldvari@power.szfki.kfki.hu;4. INFM and Physics Department, University of Parma, 43100 Parma, Italy;5. Department of Physics, Autonom Metropolitan University at Iztapalapa, Mexico DF |
| Abstract: | The Er-doped YAB (YAl3(BO3)4) is a potential self-frequency-doubling laser material. Single crystals were grown by the top-seeded flux method. The absorption spectra of the infrared Er3? transitions were monitored in YAB crystals in the 9–300 K temperature range by high-resolution Fourier transform spectroscopy. In the whole spectral range the energy levels and Stark components of 12 transitions were detectable. In this paper the two infrared transitions (from the 4I15/2 ground state to the 4I13/2 and 4I11/2 levels) were analyzed in detail. The low temperature absorption spectra of Er:YAB consist of sharp lines, the number of which corresponds to the theoretical predictions. This suggests that Er3? ions occupy one specific lattice site (yttrium positions) with negligible aggregation at the higher dopant concentrations investigated (i.e. 0.12 Fr atom/YAB mole). |
| Keywords: | Yttrium aluminum borate YAB Er dopant Absorption spectra |