https://libeldoc.bsuir.by/handle/123456789/32219
Title: | Monoclinic Tm:MgWO4 crystal: Crystal-field analysis, tunable and vibronic laser demonstration |
Authors: | Loiko, P. Wang, Y. Serres, J. M. Mateos, X. Aguilo, M. Diaz, F. Zhang, L. Lin, Z. Lin, H. Zhang, G. Vilejshikova, E. Dunina, E. V. Kornienko, A. A. Fomicheva, L. A. Petrov, V. Griebner, U. Chen, W. |
Keywords: | публикации ученых |
Issue Date: | 2018 |
Publisher: | Elsevier |
Citation: | Monoclinic Tm:MgWO4 crystal: Crystal-field analysis, tunable and vibronic laser demonstration / Loiko Pavel and others // Journal of Alloys and Compounds. - 2018. - Vol.763. - P. 581 - 591. |
Abstract: | Tm3+-doped monoclinic magnesium monotungstate (MgWO4) is a promising material for lasers emitting at above 2 μm. Stark splitting of 3H6 to 1G4 Tm3+ multiplets in MgWO4 is determined using low-temperature spectroscopy, calculated within crystal-field theory modified for the case of an intermediate configuration interaction (ICI) and analyzed in terms of the barycenter plot. Tm3+:MgWO4 features a large Stark splitting of the ground-state (3H6), 633 cm−1, and high transition cross-sections for polarized light due to its low-symmetry structure. A unique feature of Tm3+:MgWO4 to provide a naturally polarized emission at >2 μm, as well as its suitability for broadly tunable and mode-locked lasers in this spectral range are argued. The first tunable and vibronic Tm3+:MgWO4 lasers are demonstrated, yielding a continuous tuning from 1897 to 2062 nm in the former case. A vibronic laser operated at even longer wavelengths up to 2093 nm due to electron-phonon coupling with low-energy phonons of the crystalline host. Moreover, the optical indicatrix axes of high-refractive-index biaxial MgWO4 are assigned. |
URI: | https://libeldoc.bsuir.by/handle/123456789/32219 |
Appears in Collections: | Публикации в зарубежных изданиях |
File | Description | Size | Format | |
---|---|---|---|---|
Loiko_Monoclinic.pdf | 164.39 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.