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Temperature-Dependent Dielectric Characterization of Magneto-Optical Tb3Sc2Al3O12 Crystal Investigated by Terahertz Time-Domain Spectroscopy
Li, Ju-Geng; Yang, Sen-Miao; Chen, Xin; Zhuang, Nai-Feng; Zhu, Qi-Biao; Wu, An-Hua; Lin, Xian; Ma, Guo-Hong; Jin, Zuan-Ming; Yao, Jian-Quan
2019-04-01
Source PublicationCHINESE PHYSICS LETTERS
ISSN0256-307X
Volume36Issue:4
SubtypeArticle
AbstractTerbium scandium aluminum garnet (TSAG) crystals have been widely used in magneto-optical systems. We investigate the complex refractive index of the TSAG crystal in the terahertz frequency range using terahertz (THz) time-domain spectroscopy in the temperature range 100-300 K. It is observed that the refractive index and the absorption coefficient increase with the THz frequency. The refractive index increases with the temperature. We measure the temperature coefficient of the refractive index of the TSAG crystal in the frequency range 0.4-1.4 THz. Furthermore, the loss tangent, i.e., the ratio of experimental values of the imaginary and real part of the dielectric permittivity, is found to be almost independent of frequency. TSAG is very promising for applications in THz optoelectronics because it has a high dielectric constant, low loss, and low thermal coefficient of the dielectric constant.
DOI10.1088/0256-307X/36/4/044203
Language英语
WOS Research AreaPhysics
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27220
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Li, Ju-Geng,Yang, Sen-Miao,Chen, Xin,et al. Temperature-Dependent Dielectric Characterization of Magneto-Optical Tb3Sc2Al3O12 Crystal Investigated by Terahertz Time-Domain Spectroscopy[J]. CHINESE PHYSICS LETTERS,2019,36(4).
APA Li, Ju-Geng.,Yang, Sen-Miao.,Chen, Xin.,Zhuang, Nai-Feng.,Zhu, Qi-Biao.,...&Yao, Jian-Quan.(2019).Temperature-Dependent Dielectric Characterization of Magneto-Optical Tb3Sc2Al3O12 Crystal Investigated by Terahertz Time-Domain Spectroscopy.CHINESE PHYSICS LETTERS,36(4).
MLA Li, Ju-Geng,et al."Temperature-Dependent Dielectric Characterization of Magneto-Optical Tb3Sc2Al3O12 Crystal Investigated by Terahertz Time-Domain Spectroscopy".CHINESE PHYSICS LETTERS 36.4(2019).
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