Growth and characterization of GSZS crystals with enhanced transparency window for non linear optical applications

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• 作者：M.M. Khandpekar^a ; ^{dr_mmk1968@yahoo.com"" rel=""nofollow} ; S.S. Dongare^a ; S.B. Patil^b ; S.P. Pati^c
• 关键词：A1. Crystal ; A2. Structure ; A3. Non linear optical ; B1. Dielectric
• 刊名：Optics Communications
• 出版年：2011
• 出版时间：1 July 2011
• 年：2011
• 卷：284
• 期：14
• 页码：3548-3551
• 全文大小：544 K

文摘

Transparent crystals of novel non-linear optical material comprising of glycine sodium–zinc sulfate (GSZS) have been grown in our laboratory from solution by slow evaporation technique. Transparent crystals of dimensions (8 × 7 × 4 mm³) have been obtained in 3–4 weeks time. The solubility in water shows linear variation in temperatures range from 300 K to 350 K. The GSZS crystal exhibits orthorhombic symmetry with a = 5.418 A.U., b = 6.084 A.U and c = 3.497 A.U. The intense XRD peak is found at 25.43°. The presence of functional groups has been studied by FTIR analysis and verified by laser Raman spectra. Lower cutoff wavelength and enhanced transparency window with a typical energy gap of 5.85 eV are suggested by the UV measurements. The second harmonic generation (SHG) efficiency of GSZS is found to be 0.62 times than that of standard KDP using modified Kurtz and Perry technique. The GSZS crystal exhibits a normal dielectric behavior.