Review of a new IR nonlinear optical BaGa4Se7 crystal

被引：1
|
作者：
Xu W.-T. [1 ]
Xu D.-G. [1 ]
Wang Y.-Y. [1 ]
Liu P.-X. [2 ]
Shi W. [1 ]
Yao J.-Q. [1 ]
机构：
[1] Institute of Laser and Opto-Electronic, College of Precision Instruments and Opto-Electronic Engineering, Tianjin University, Tianjin
[2] Institute of Laser and Opto-Electronic, Tianjin University
来源：
Xu, De-Gang (xudegang@tju.edu.cn) | 1600年 / Univ. of Electronic Science and Technology of China卷 / 14期
关键词：
BaGa[!sub]4[!/sub]Se[!sub]7[!/sub; Bridgman-Stockbarger; Mid-infrared; Nonlinear gain medium; THz-DFG;
D O I：
10.11989/JEST.1674-862X.509161
中图分类号：
学科分类号：
摘要：
A newly grown BaGa4Se7 crystal has been synthesized via the Bridgman-Stockbarger technique. This new crystal has advantages of high nonlinear optics (NLO) coefficients, high laser damage thresholds, and wide transparent regions. The BaGa4Se7 crystal has bright application prospects as a nonlinear gain medium in mid-infrared and terahertz regions. In this paper, the crystalline structure and synthetic method of the BaGa4Se7 crystal are introduced. The refractive indices and absorption coefficients along three dielectric axes between 0.1 THz and 1.0 THz are also obtained. The terahertz difference frequency generation (THz-DFG) characteristics based on the BaGa4Se7 crystal in the frequency range of 0.1 THz to 1.0 THz are analyzed theoretically and the phase-matching conditions are calculated. The application of BaGa4Se7 crystals in terahertz wave generation is also discussed.
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页码：6 / 11
页数：5
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