Abstract
We report the linear and nonlinear optical (NLO) properties of a polar crystal Cs2TeW3O12 (CTW). The second-order NLO coefficients were determined by Maker Fringe (MF) techniques for the first time. CTW belong to hexagonal system with point group P63, the two independent NLO coefficients of d32 and d33 were determined to be 6.2 and 4.3 pm/V, respectively. CTW can realize phase-matching (PM) and in the direction of θ = 39.6° the effective NLO coefficient is 4.0 pm/V at 1064 nm. To illustrate the good NLO properties of CTW, the distortions of polyhedron structures were also discussed in detail.
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