Synthesis, growth and characterization of π conjugated organic nonlinear optical chalcone derivative

  • A.N. Prabhu, V. Upadhyaya, A. Jayarama, K. Subrahmanya Bhat
  • Materials Chemistry and Physics, February 2013, Elsevier
  • DOI: 10.1016/j.matchemphys.2012.11.041

chalcone with modest properties for possible NLO application...

What is it about?

A new potentially useful nonlinear optical organic material, 1-(5-chlorothiophen-2-yl)-3-(2,3-dimethoxyphenyl)prop-2-en-1-one, has been synthesized and grown as a high-quality single crystal by the slow evaporation technique. The grown crystals were characterized by FT-IR, NMR, thermal analysis, and UV–visible spectroscopy. The material is thermally stabile up to 111 °C. The mechanical property of the grown crystals was studied using Vickers microhardness tester and the load dependence hardness was observed. The third order nonlinear optical properties of the material such as real and imaginary part of χ(3), nonlinear absorption coefficient and nonlinear refractive index were determined using nanosecond laser pulses at 532 nm wavelength by employing Z-scan technique. The nonlinear refractive index is found to be of the order of 10−11 cm2 W−1. The magnitude of third order susceptibility is of the order of 10−13 esu. The observed increase in the third order nonlinearity in these molecules clearly indicates the electronic origin. The compounds exhibit good optical limiting at 532 nm. The best optical limiting behavior of this molecule is due to the substituted strong electron donor.

Why is it important?

Simple compounds that finds many applications. One of the paper among the many in series.


Dr Subrahmanya Bhat K
Manipal Institute Of Technology, Manipal Academy of Higher Education

Chalcones are simple and worthy molecules to explored in the field of material science. Easy to prepare in good yield, purity and in most cases they are cheap.

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The following have contributed to this page: Dr Subrahmanya Bhat K