کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9785526 | 1512646 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Theoretical studies on nonvolatile two-step, two-color holographic recording sensitivity for LiNbO3:Fe
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Theoretical studies on nonvolatile two-step, two-color holographic recording sensitivity for LiNbO3:Fe Theoretical studies on nonvolatile two-step, two-color holographic recording sensitivity for LiNbO3:Fe](/preview/png/9785526.png)
چکیده انگلیسی
The effects of material and experimental parameters on the nonvolatile two-step, two-color holographic recording sensitivity for LiNbO3:Fe have been studied theoretically based on a two-center model. We have taken into account the direct electron transfer between the deep-trap center Fe2+/Fe3+ and the shallow-trap center NbLi4+/NbLi5+ due to the tunneling effect. The results show that the direct electron transfer between the Fe2+/Fe3+ and the NbLi4+/NbLi5+ centers plays a key role in the improvement of two-step, two-color holographic recording sensitivity. The near-stoichiometric LiNbO3:Fe has been confirmed theoretically to be of higher recording sensitivity and larger dynamic range than the congruent one in the low intensity region. A further improvement of the recording sensitivity can be achieved by employing appropriate doping concentration and thermal reduction treatment of Fe and/or selecting appropriate gating and recording wavelengths with large photo-excitation cross-sections.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 256, Issues 1â3, 1 December 2005, Pages 24-34
Journal: Optics Communications - Volume 256, Issues 1â3, 1 December 2005, Pages 24-34
نویسندگان
Yan Shen, Guoquan Zhang, Bo Fu, Qingjun Xu, Jingjun Xu,