BaTeMo2O9 crystals: optical properties and applications in the terahertz range

被引：2

作者：

Qiao, Hongzhan ^{[1
,2
]}

Zhong, Kai ^{[1
,2
]}

Yan, Chao ^{[1
,2
]}

Liu, Yang ^{[1
,2
]}

Tang, Longhuang ^{[1
,2
]}

Liu, Kefei ^{[1
,2
]}

Gao, Zeliang ^{[3
]}

Tao, Xutang ^{[3
]}

Li, Jining ^{[1
,2
]}

Xu, Degang ^{[1
,2
]}

Wang, Yuye ^{[1
,2
]}

Shi, Wei ^{[1
,2
]}

Yao, Jianquan ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Precis Instruments & Optoelect Engn, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Key Lab Optoelect Informat Technol, Minist Educ, Tianjin 300072, Peoples R China

[3] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China

来源：

OPTICAL MATERIALS EXPRESS | 2019年 / 9卷 / 11期

基金：

中国国家自然科学基金;

关键词：

STIMULATED POLARITON SCATTERING; GENERATION; GROWTH;

D O I：

10.1364/OME.9.004390

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The optical properties of the alpha/beta-BaTeMo2O9 (alpha/beta-BTM) crystal in the terahertz range were characterized by the terahertz time domain spectroscopy (TDS) system. Frequency-dependent refractive indices and absorption coefficients of two crystals were measured from 0.2 to 2 THz, and discussions and comparisons were made on birefringence, absorption and phonon modes by referring to their structures. The Sellmeier equations for both crystals were also fitted in their transparent ranges. Based on the mode properties and parameters, a feasible scheme for terahertz generation via stimulated polariton scattering (SPS) with beta-BTM was proposed and the angle tuning characteristics were calculated. Simulations show that beta-BTM has great potential and should be more advantageous than LiNbO3 in generating high-frequency terahertz waves. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：4390 / 4398

页数：9

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