Terahertz optical constants of ytterbium-doped yttrium aluminum garnet crystals

被引：0

作者：

Tsai, Tsong-Ru ^{[1
]}

Chang, Chih-Fu ^{[1
]}

Chen, Shi-Jie ^{[1
]}

Tani, Masahiko ^{[2
]}

Yamaguchi, Mariko ^{[2
]}

Sumikura, Hisashi ^{[2
]}

Chiang, Hai-Pang ^{[1
,3
]}

Chen, Yuan-Fan ^{[3
]}

Tse, Wan-Sun ^{[3
]}

机构：

[1] Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung, 20224, Taiwan

[2] Institute of Laser Engineering, Osaka University, Osaka 5650871, Japan

[3] Institute of Physics, Academia Sinica, Taipei, 115, Taiwan

来源：

Journal of Applied Physics | 2006年 / 99卷 / 09期

关键词：

Terahertz time-domain spectroscopy has been employed to measure the optical constants of ytterbium-doped yttrium aluminum garnet (Ybx Y1-x) 3 Al5 O12 (Yb:YAG) crystals for nominal x values of 0.0; 0.1; 0.2; 0.5; 0.8; and 1.0 in the frequency range from 0.2 to 1.8 THz. The real refractive indices for Yb:YAG crystals increase linearly with the concentration of 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. © 2006 American Institute of Physics;

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摘要：

Journal article (JA)

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