Temperature-Dependent Sellmeier Equations of IR Nonlinear Optical Crystal BaGa4Se7

Autor: Naixia Zhai, Chao Li, Bo Xu, Lei Bai, Jiyong Yao, Guochun Zhang, Zhanggui Hu, Yicheng Wu
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Crystals, Vol 7, Iss 3, p 62 (2017)
Druh dokumentu: article
ISSN: 2073-4352
DOI: 10.3390/cryst7030062
Popis: 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.
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