Substituent Dependence of Third-Order Optical Nonlinearity in Chalcone Derivatives

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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
Publisher
JAPAN SOC APPLIED PHYSICS
Issue Date
2008-08
Language
English
Article Type
Article
Keywords

Z-SCAN TECHNIQUE; WAVELENGTH DEPENDENCE; THIOPHENE OLIGOMERS; ABSORPTION

Citation

JAPANESE JOURNAL OF APPLIED PHYSICS, v.47, no.8, pp.6312 - 6316

ISSN
0021-4922
DOI
10.1143/JJAP.47.6312
URI
http://hdl.handle.net/10203/212755
Appears in Collection
PH-Journal Papers(저널논문)
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