کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9829364 | 1524489 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Threshold concentration of MgO in near-stoichiometric LiNbO3 crystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
MgO-doped near-stoichiometric LiNbO3 crystals have been grown by the high-temperature top-seeded solution growth method from the K2O-Li2O-Nb2O5 flux. The critical threshold concentration of MgO required to minimize photorefractive damage in the crystals has been determined on the basis of the liquid-solid phase relations. The lowest MgO concentration in the melt where above-threshold crystals can be still grown with near-stoichiometric crystal composition was 0.2Â mol%. At near-threshold MgO concentration, a transitional region was detected along the crystal growth axis, where two OHâ absorption bands peaking at 3465 and 3534Â cmâ1 frequency were observed in the IR spectra at the same time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 284, Issues 1â2, 15 October 2005, Pages 149-155
Journal: Journal of Crystal Growth - Volume 284, Issues 1â2, 15 October 2005, Pages 149-155
نویسندگان
Á. Péter, K. Polgár, L. Kovács, K. Lengyel,