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- Title
Investigations on the growth, linear, nonlinear, dielectric tensor and thermal properties of an acidic molecule: diphenylacetic acid single crystal.
- Authors
Jauhar, RO. MU.; Dar, Mudasir H.; Vivek, P.; Rao, D. Narayana; Murugakoothan, P.
- Abstract
An organic crystal, diphenylacetic acid (DPA) was grown by the slow evaporation solution growth technique. The title compound crystallizes in the monoclinic crystal system with space group, P21/c. UV-vis-NIR spectral study showed that the grown DPA crystal is transparent in the entire visible region with the lower cut-off wavelength of 225 nm. The four independent tensor coefficients of dielectric permittivity were found to be ε11 = 29.92, ε22 = 28.74, ε33 = 27.38 and ε13 = 0.81 from the dielectric measurements. The DPA compound is thermally stable up to 148.9 °C assessed by thermogravimetric and differential thermal (TG-DTA) analyses. The laser induced surface damage threshold of the grown DPA crystal was found to be 0.2165 GWcm−2 for 1064 nm Nd:YAG laser radiation. Nonlinear refractive index (n2), absorption coefficient (β) and third order nonlinear susceptibility (χ(3)) were determined by Z-scan technique for the DPA crystal. Optical limiting study revealed that the transmitted output power increases linearly with the input power up to irradiance of around 3.1 mW/cm2.
- Publication
Journal of Optics (09728821), 2018, Vol 47, Issue 1, p28
- ISSN
0972-8821
- Publication type
Article
- DOI
10.1007/s12596-017-0418-x