Substituent Dependence of Third-Order Optical Nonlinearity in Chalcone Derivatives

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概要

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• The third-order nonlinear optical properties of derivatives of dibenzylideneacetone were investigated using the single beam $z$-scan technique at 532 nm. A strong dependence of third-order optical nonlinearity on electron donor and acceptor type of substituents was observed. An enhancement in $\chi^{(3)}$-value of one order of magnitude was achieved upon the substitution of strong electron donors compared to that of the molecule substituted with an electron acceptor. The magnitude of nonlinear refractive index of these chalcones is as high as of $10^{-11}$ esu. Their nonlinear optical coefficients are larger than those of widely used thiophene oligomers and trans-1-[p-(p-dimethylaminobenzyl-azo)-benzyl]-2-(N-methyl-4-pyridinium)-ethene iodide (DABA-PEI) organic compounds.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2008-08-25

著者

• Rotermund Fabian

  Division Of Energy Systems Research Ajou University

• Rai Nooji

  Department of Chemistry, Mangalore University, Karnataka 574 199, India

• Kiran Anthony

  Division of Energy Systems Research, Ajou University, Suwon 443-749, Korea

• Chandrasekharan Keloth

  Department of Science and Humanities, National Institute of Technology Calicut, Kerala 673 601, India

• Kalluraya Balakrishna

  Department of Chemistry, Mangalore University, Karnataka 574 199, India

関連論文

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• Substituent Dependence of Third-Order Optical Nonlinearity in Chalcone Derivatives
• Phase Matching Characteristics of Second-Harmonic Generation in Periodic 90°-Domain Structures of KNbO3

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