کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5442359 | 1510761 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Continuous sign change crossing zero of the light refraction observed at the Au/air interface
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Light transmission at the Au/air interface was measured for wedge-shaped Au film samples. Light refraction continuously changing its sign from positive to negative at the Au/air interface in the spectrum range of 470-700Â nm was observed with a zero refraction occurred at about 525Â nm. The results indicate that the effective refraction index ne of samples are not correlated with wedge angles, implying that ne can be considered an intrinsic characteristic of the metal material. The positive and negative refractions observed in the experiment can be attributed to the dispersive feature of the dielectric function of Au with qualitative explanation according to the mechanisms of electron transition and the boundary conditions restricted at the interface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 73, November 2017, Pages 247-251
Journal: Optical Materials - Volume 73, November 2017, Pages 247-251
نویسندگان
Zhun-Hua Liu, Yu-Xiang Zheng, Liao Yang, Shang-Dong Yang, Kai-Yan Zang, Hai-Bin Zhao, Rong-Jun Zhang, Song-You Wang, Liang-Yao Chen, Young-Pak Lee, David W. Lynch,