Abstract

Urea is an excellent nonlinear optical (NLO) medium. However, growth of large high-quality crystals for practical use still remains a challenge due to its unfavorable growth properties. Improved crystalline and optical quality could be expected in mixed systems. This work presents the synthesis, growth and second-harmonic-generation (SHG) studies of two-component new organic NLO systems, urea–meta nitro benzoic acid (mNBA) and urea– l-malic acid. The material property of urea seems to be modified by the addition of mNBA and l-malic acid. The SHG efficiency was measured by Kurtz powder method showing variation with composition variation.

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