Journal
CRYSTAL RESEARCH AND TECHNOLOGY
Volume 44, Issue 12, Pages 1297-1302Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/crat.200900351
Keywords
nonlinear optical crystals; optical constants; optical susceptibility
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Optical absorption of tris thiourea zinc sulphate (ZTS) single crystals has been measured and its direct band gap was found to be 3.6 eV. Theoretical calculations were carried out to determine the linear optical constants such as extinction coefficient and refractive index. Further the optical nonlinearties of ZTS have been investigated by Z-scan technique with He-Ne laser at 632.8 nm. The nonlinear refractive index, absorption coefficient and third order susceptibility is found to be in the order of - 5.36 +/- 0.26 x 10(-12) cm(2)/W, 4.24 +/- 0.21 x 10(-4) cm/W, 3.5 +/- 0.17 x 10(-4) esu respectively. Thus optical characterization of ZTS reveals the various industrial application oriented properties of the material.
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