Patil, P. S. and Kumar, P. Ajay and Rao, S. Venugopal and Bhagavannarayana, G. (2015) Growth and characterization of a new organic nonlinear optical crystal: 1-(3-Nitrophenyl)-5-phenylpenta-2,4-dien-1-one. Optics and Laser Technology , 71. pp. 108-113. ISSN 0030-3992

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Abstract

Organic nonlinear optical single crystal of 1-(3-Nitrophenyl)-5-phenylpenta-2,4-dien-1 -one (Ci3NC) with dimensions 25 x 15 x 10 mm(3) was successfully grown for the first time by the slow evaporation solution growth technique (SEST). The structural perfection of the grown crystals has been analyzed by high-resolution X-ray diffraction (HRXRD) rocking curve measurements, and it was found that the crystalline perfection is reasonably good having very low angle (tilt angle <= 1 ') internal structural grain boundary. Thermo-gravimetric analysis (TGA) and differential thermal analysis (DTA) Were used to study its thermal properties. Powder test with Nd:YAG laser radiation shows second harmonic generation which is about 7 times that of urea. The optical transmittance window and the lower cutoff wavelength of the Ci3NC have been identified by UV-vis-NIR studies. Third-order nonlinear optical (NLO) response of Ci3NC has been examined using Z-scan technique with femtosecond (fs), MHz pulses at Wavelengths of 870 nm and 900 nm. Various NLO coefficients such as two-photon absorption (2PA) coefficient (beta), three photon absorption (3PA) coefficient (gamma), and nonlinear refractive index (eta(2)) were evaluated.

Item Type:	Article
Uncontrolled Keywords:	Organic compounds Nonlinear opticalmaterial Two-photonabsorption
Subjects:	Applied Physics/Condensed Matter Optics
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	23 Sep 2016 06:34
Last Modified:	23 Sep 2016 06:34
URI:	http://npl.csircentral.net/id/eprint/1839

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