Temperature-Dependent Dielectric Characterization of Magneto-Optical Tb3Sc2Al3O12 Crystal Investigated by Terahertz Time-Domain Spectroscopy

doi:10.1088/0256-307X/36/4/044203

SIC OpenIR

	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 Publication	CHINESE PHYSICS LETTERS
ISSN	0256-307X
Volume	36 Issue:4
Subtype	Article
Abstract	Terbium 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.
DOI	10.1088/0256-307X/36/4/044203
Language	英语
WOS Research Area	Physics
Publisher	IOP PUBLISHING LTD
Citation statistics	Cited Times:4[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://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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