کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7907626 | 1510756 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectroscopy of Tb3+ ions in monoclinic KLu(WO4)2 crystal application of an intermediate configuration interaction theory
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The spectroscopic properties of Tb3+ ions in monoclinic KLu(WO4)2 double tungstate crystal are studied with polarized light. The absorption spectra in the visible, near- and mid-IR including the transitions to all lower-lying 7FJ (Jâ¯=â¯0 ⦠5) excited states are measured. The maximum absorption cross-section for the 7F6â¯ââ¯5D4 transition is 3.42â¯Ãâ¯10â21â¯cm2â¯at 486.7â¯nm for light polarization E || Nm. The transition probabilities for Tb3+ ions are calculated within the Judd-Ofelt theory modified for the case of an intermediate configuration interaction (ICI). The radiative lifetime of the 5D4 state is 450 μs and the luminescence quantum yield is >90%. The polarized stimulated-emission cross-section spectra for all 5D4â¯ââ¯7FJ (Jâ¯=â¯0 ⦠6) emission channels are evaluated. The maximum ÏSE is 11.4â¯Ãâ¯10â21â¯cm2â¯at 549.4â¯nm (for E || Nm). Tb3+:KLu(WO4)2 features high transition cross-sections for polarized light being promising for color-tunable visible lasers and imaging.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 78, April 2018, Pages 495-501
Journal: Optical Materials - Volume 78, April 2018, Pages 495-501
نویسندگان
Pavel Loiko, Anna Volokitina, Xavier Mateos, Elena Dunina, Alexey Kornienko, Elena Vilejshikova, Magdalena Aguiló, Francesc DÃaz,