Calculation of the omnidirectional nonlinear optical coefficients of ReCOB (Re = Y, Gd and La) crystals

Yuxiang Sun; Fapeng Yu; HongKai Ren; Zhengping Wang; Xinguang Xu

doi:10.1117/12.2524101

10 May 2019 Calculation of the omnidirectional nonlinear optical coefficients of ReCOB (Re = Y, Gd and La) crystals

Yuxiang Sun, Fapeng Yu, HongKai Ren, Zhengping Wang, Xinguang Xu

Proceedings Volume 11068, Second Symposium on Novel Technology of X-Ray Imaging; 1106811 (2019) https://doi.org/10.1117/12.2524101
Event: Second Symposium on Novel Technology of X-Ray Imaging, 2018, Hefei, China

Abstract

Almost all attention has been paid to the effective nonlinear coefficient along the direction of phase matching, so this paper calculated the omnidirectional effective nonlinear coefficient of ReCOB single crystals by computer out of interest. The results showed that the distribution of the first and second quadrants of omnidirectional |d_eff| presented multi-peaks surface divided by three “valleys” which were made up of a series of minimum values. The variation of d₃₂ and d₁₃ had more significant impacts on the distribution of omnidirectional |d_eff| than the other coefficients and the variation of wavelength had negligible influence on that. A broadband wavelength range about 6 nm could achieve efficient frequency conversion simultaneously within the deviation being less than 2 degrees during a type-I DFG process in YCOB crystal. These results could provide valuable guidance for the selection and utilization of ReCOB crystals.

Citation Download Citation

Yuxiang Sun, Fapeng Yu, HongKai Ren, Zhengping Wang, and Xinguang Xu "Calculation of the omnidirectional nonlinear optical coefficients of ReCOB (Re = Y, Gd and La) crystals", Proc. SPIE 11068, Second Symposium on Novel Technology of X-Ray Imaging, 1106811 (10 May 2019); https://doi.org/10.1117/12.2524101

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