کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1491965 | 992364 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Correlation between the nonlinear refractive index and structure of germanium-based chalcogenide glasses
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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 nonlinear refractive index (n2) of new germanium-based sulfo-selenide glasses has been measured at 1064 nm using Z-scan technique, with picosecond pulses emitted by a 10 Hz Q-switched mode-locked Nd:Yag laser. We have determined the impact of the progressive replacement of S by Se on the nonlinear properties of these glasses. The value of n2 strongly increases with the substitution of S by Se, up to 350 times the n2 for fused silica. X-ray photoelectron spectroscopy (XPS) indicates that the increase of Ge–Se bond units in the glass network is responsible for the increase of n2. The suitability of these glasses for optical switching at telecommunication wavelengths based on such nonlinear properties has been also confirmed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 42, Issue 12, 4 December 2007, Pages 2107–2116
Journal: Materials Research Bulletin - Volume 42, Issue 12, 4 December 2007, Pages 2107–2116
نویسندگان
L. Petit, N. Carlie, A. Humeau, G. Boudebs, H. Jain, A.C. Miller, K. Richardson,