کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1329303 978904 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of sodium to barium substitution on the space charge implementation in thermally poled glasses for nonlinear optical applications
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Effect of sodium to barium substitution on the space charge implementation in thermally poled glasses for nonlinear optical applications
چکیده انگلیسی

Thermally poled niobium borophosphate glasses in the system 0.55(0.95−y) NaPO3+y/2 Ba(PO3)2+0.05Na2B4O7)+0.45Nb2O5 were investigated for second order optical nonlinear (SON) properties. Bulk glasses were studied by Raman spectroscopy, thermal analysis, optical and dielectric measurements. The sodium to barium substitution does not lead to significant changes in optical properties, crystallization of glasses and coordination environment of polarizable niobium atoms. However, the ionic conductivity decreases drastically with the increase of barium concentration. Secondary ion mass spectroscopy has been used to determine the element distribution in the anode layer of the thermally poled glasses. The second order optical susceptibilities gradually decrease from χ(2)=2.8 pm/V to zero with the increase of barium content. Using a simple electrical model, variations of nonlinear optical responses have been correlated with dielectric characteristics.

The sodium to barium substitution strongly influences the space charge implementation (Eint) at the anode side of the poled glass and thus its nonlinear optical properties.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Solid State Chemistry - Volume 182, Issue 5, May 2009, Pages 1156–1163
نویسندگان
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