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Article

Temperature-Dependent Sellmeier Equations of IR Nonlinear Optical Crystal BaGa4Se7

by
Naixia Zhai
1,2,
Chao Li
1,2,
Bo Xu
1,2,
Lei Bai
1,
Jiyong Yao
1,*,
Guochun Zhang
1,
Zhanggui Hu
1 and
Yicheng Wu
1
1
Beijing Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Crystals 2017, 7(3), 62; https://doi.org/10.3390/cryst7030062
Submission received: 19 January 2017 / Revised: 13 February 2017 / Accepted: 14 February 2017 / Published: 23 February 2017
(This article belongs to the Special Issue Nonlinear Optical Crystals 2017—Commemorative Issue in Honor of Professor Chuangtian Chen on the Occasion of his 80th Anniversary)
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Abstract

The thermal dependent principal refractive indices of a new promising IR nonlinear optical crystal BaGa4Se7 at wavelengths of 0.546, 0.5806, 0.644, 0.7065, 1.530, 1.970, and 2.325μm were measured by using the vertical incidence method within the temperature range from 25 to 150 °C. We derived equations of thermal refractive index coefficients as a function of wavelength that could be used to calculate the principal thermal refractive indices at different wavelengths. The temperature-dependent Sellmeier equations were also obtained and used to calculate the phase matching angles for the optical parametric process of BaGa4Se7 crystal at different temperatures.
Keywords: BaGa4Se7; nonlinear optical crystal; thermal refractive index coefficient; temperature-dependent Sellmeier equation BaGa4Se7; nonlinear optical crystal; thermal refractive index coefficient; temperature-dependent Sellmeier equation

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MDPI and ACS Style

Zhai, N.; Li, C.; Xu, B.; Bai, L.; Yao, J.; Zhang, G.; Hu, Z.; Wu, Y. Temperature-Dependent Sellmeier Equations of IR Nonlinear Optical Crystal BaGa4Se7. Crystals 2017, 7, 62. https://doi.org/10.3390/cryst7030062

AMA Style

Zhai N, Li C, Xu B, Bai L, Yao J, Zhang G, Hu Z, Wu Y. Temperature-Dependent Sellmeier Equations of IR Nonlinear Optical Crystal BaGa4Se7. Crystals. 2017; 7(3):62. https://doi.org/10.3390/cryst7030062

Chicago/Turabian Style

Zhai, Naixia, Chao Li, Bo Xu, Lei Bai, Jiyong Yao, Guochun Zhang, Zhanggui Hu, and Yicheng Wu. 2017. "Temperature-Dependent Sellmeier Equations of IR Nonlinear Optical Crystal BaGa4Se7" Crystals 7, no. 3: 62. https://doi.org/10.3390/cryst7030062

APA Style

Zhai, N., Li, C., Xu, B., Bai, L., Yao, J., Zhang, G., Hu, Z., & Wu, Y. (2017). Temperature-Dependent Sellmeier Equations of IR Nonlinear Optical Crystal BaGa4Se7. Crystals, 7(3), 62. https://doi.org/10.3390/cryst7030062

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