کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1495891 992949 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
d–d Transitions of Fe3+ ions in Fe-doped K2Al2B2O7 crystal
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
d–d Transitions of Fe3+ ions in Fe-doped K2Al2B2O7 crystal
چکیده انگلیسی

Single crystal of K2Al2B2O7 (KABO) with 6.3% aluminum substituted by iron was grown by top-seeded solution method using KF-B2O3 as flux. Optical transmittance, reflection and photoluminescence spectra of the Fe-doped KABO crystal were investigated by comparing with those of the Fe-free crystal. The absorption and fluorescence bands in the visible and near infrared regions were assigned to d–d transitions of tetrahedrally coordinated Fe3+ ions. The results of theoretical calculation based on the crystal-field approximation show a good agreement with the observed optical absorption peak positions. These evidences reconfirmed that the Fe3+ impurity causes the UV absorption in KABO crystal which prevent it from being used as efficient nonlinear optical materials for the fourth harmonic generation of Nd-based lasers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 32, Issue 10, August 2010, Pages 1313–1316
نویسندگان
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