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The performance of a nonlinear organic material, N, N′ dimethylurea, is evaluated through second-harmonic generation in powder. It is shown to be most effective in the region 227–240 nm. The UV absorption of this compound is also reported. The observation of second harmonic generation in this material rules out one of the two crystal structures reported in the literature.
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Halbout et al. (1980) studied this question.
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