Li-impurity effect in optical spectra of KTaO 3 :Er 3+  crystals

A. P. Skvortsov; Z. Potůček; N. K. Poletaev; P. P. Syrnikov; Z. Bryknar; A. Dejneka; L. Jastrabik; V. A. Trepakov

doi:10.1134/S0030400X16100222

Li-impurity effect in optical spectra of KTaO₃:Er³⁺ crystals

作者: Skvortsov A.P.¹, Potůček Z.²^,3, Poletaev N.K.¹, Syrnikov P.P.¹, Bryknar Z.³, Dejneka A.², Jastrabik L.², Trepakov V.A.¹^,2
隶属关系:
1. Ioffe Institute Russian Academy of Sciences
2. Institute of Physics AS CR, v. v. i.
3. Faculty of Nuclear Sciences and Physical Engineering
期: 卷 121, 编号 4 (2016)
页面: 534-537
栏目: XVI International Feofilov Symposium
URL: https://journal-vniispk.ru/0030-400X/article/view/165058
DOI: https://doi.org/10.1134/S0030400X16100222
ID: 165058

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The f–f absorption and emission spectra of Er³⁺ impurities were observed and identified in KTaO₃ and K_{1 – x}Li_xTaO₃ single crystals. It was shown that Li off-centers related random fields markedly influence intensity, width and position of zero-phonon lines. The detail analysis of the absorption spectra obtained allowed one to determine energies of the Stark sublevels of excited states for Er³⁺ dominant centers of noncubic symmetry.