Crystal growth and characterization of a new nonlinear optical material: Urea l-Malic Acid

A new nonlinear optical organic crystal, viz. Urea l-Malic acid, has been grown from aqueous solution employing the techniques of solvent evaporation and slow cooling. The grown crystals were found to be transparent in the visible region. The complete morphology of the crystal has been worked out an...

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Bibliographic Details
Published in:	Journal of crystal growth Vol. 253; no. 1; pp. 460 - 466
Main Authors:	Dixit, V.K, Vanishri, S, Bhat, H.L, de Matos Gomes, E, Belsley, M, Santinha, C, Arunmozhi, G, Venkataramanan, V, Proena, F, Criado, A
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 01-06-2003 Elsevier
Subjects:	A1. Crystal morphology A1. Solubility A2. Growth from solutions B1. Organic compounds B2. Nonlinear optical materials Cross-disciplinary physics: materials science; rheology Exact sciences and technology Fundamental areas of phenomenology (including applications) Growth from solutions Materials science Methods of crystal growth; physics of crystal growth Nonlinear optical crystals Optical materials Optics Physics 42.70.Mp 78.20.Ci A2. Growth from solutions B2. Nonlinear optical materials 77.84.Jd B1. Organic compounds A1. Crystal morphology 81.10.Dn A1. Solubility Second harmonic generation 81.10.Dn A1. Crystal morphology Dicarboxylic acids Carboxylic acids Evaporation Experimental study Characterization Urea Aqueous solutions Optical properties Crystal growth from solutions Slow cooling Optical materials Nonlinear optics Organic compounds Adducts
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Summary:	A new nonlinear optical organic crystal, viz. Urea l-Malic acid, has been grown from aqueous solution employing the techniques of solvent evaporation and slow cooling. The grown crystals were found to be transparent in the visible region. The complete morphology of the crystal has been worked out and its hardness was evaluated using Vickers indentation method. The grown crystals were characterized employing several techniques such as micro-carbon–hydrogen–nitrogen analysis, X-ray diffraction, thermogravimetric analysis, differential thermal analysis, UV–VIS–IR spectroscopy and refractive index measurement. Preliminary measurements indicate that the second harmonic generation efficiency at a fundamental wavelength of 1064 nm is roughly three times that of KDP.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0022-0248 1873-5002
DOI:	10.1016/S0022-0248(03)01031-5