Gayathri, K. and Mohana, J. and Srividya, J. and Bhagavannarayana, G. and Anbalagan, G. (2016) Growth, optical, spectral and thermal characterization of brucinium hydrogen fumarate sesquihydrate: An organic material for optical applications. Optik, 127 (3). 1176-1183 . ISSN 0030-4026

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Brucinium hydrogen fumarate sesquihydrate (BHF), an organic nonlinear optical material, has been synthesized and single crystals were grown from acetone-water mixed solution. X-ray diffraction analysis showed that BHF belongs to the monoclinic crystal system with space group C2. The crystalline perfection of the BHF crystal was analyzed by high-resolution X-ray diffraction study. The UV-Vis spectrum of BHF showed about 70% transparency in the visible region. The material shows a strong dispersion of refractive indices in the visible region and a large birefringence (0.540-0.461). The grown crystal was thermally stable up to 162.4 degrees C. The molecular structure of the crystal was confirmed by FT-IR and FT-Raman spectroscopic techniques and complete vibration analysis of the molecule have also been made. The laser damage threshold value of the BHF is found to be 13.64 GW/cm(2) and hence BHF can be used in frequency doubler systems. The measured specific heat capacity lies between 1.495 and 4.45 J/gK at 45 and 175 degrees C, respectively, and of values greater than potassium dihydrogen phosphate crYstal.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Elsevier.
Uncontrolled Keywords: Crystal growthX-ray techniques Thermal properties Optical materials Laser damage threshold
Subjects: Optics
Depositing User: Dr. Rajpal Walke
Date Deposited: 23 Jan 2018 08:51
Last Modified: 23 Jan 2018 08:51

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