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Title: Terahertz optical constants of ytterbium-doped yttrium aluminum garnet crystals
Authors: Tsong-Ru Tsai;Chih-Fu Chang;Shi-Jie Chen
Date: 2016
Issue Date: 2017-02-10T02:54:45Z
Publisher: Applied Physics
Abstract: Abstract: Terahertz time-domain spectroscopy has been employed to measure the optical constants of ytterbium-doped yttrium aluminum garnet (YbxY1−x)3Al5O12(YbxY1−x)3Al5O12 (Yb:YAG) crystals for nominal xx values of 0.0, 0.1, 0.2, 0.5, 0.8, and 1.0 in the frequency range from 0.2to1.8THz0.2to1.8THz. The real refractive indices for Yb:YAG crystals increase linearly with the concentration of Yb3+Yb3+. The experimental results can be fitted by the Sellmeier equation. The results imply that the phonon modes of the Yb:YAG crystals shift to lower frequencies with substitution of Yb for Y. The extinction coefficients of the Yb:YAG crystals are smaller than 0.05.
Relation: 99
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41210
Appears in Collections:[光電科學研究所] 期刊論文

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