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Proceedings Paper

Calculation of the omnidirectional nonlinear optical coefficients of ReCOB (Re = Y, Gd and La) crystals
Author(s): Yuxiang Sun; Fapeng Yu; HongKai Ren; Zhengping Wang; Xinguang Xu
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Paper 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 |deff| 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 |deff| 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.

Paper Details

Date Published: 10 May 2019
PDF: 7 pages
Proc. SPIE 11068, Second Symposium on Novel Technology of X-Ray Imaging, 1106811 (10 May 2019); doi: 10.1117/12.2524101
Show Author Affiliations
Yuxiang Sun, Shandong Univ. (China)
Fapeng Yu, Shandong Univ. (China)
HongKai Ren, Shandong Univ. (China)
Zhengping Wang, Shandong Univ. (China)
Xinguang Xu, Shandong Univ. (China)

Published in SPIE Proceedings Vol. 11068:
Second Symposium on Novel Technology of X-Ray Imaging
Yangchao Tian; Tiqiao Xiao; Peng Liu, Editor(s)

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