Third-Order Nonlinear Optical Properties of a Series of Systematically Designed Conjugated Rigid-Rod Polyquinolines

These results suggest that structure-χ(3) propeny relationships in polymers cannot be inferred from those of oligomers and model compounds

Ashwini K. Agrawal; Samson A. Jenekhe; Herman Vanherzeele; Jeffrey S. Meth

2011

Scholarcy highlights

  • The third-order nonlinear optical properties of thin films of two series of conjugated rigid-rod polyquinolines, exemplified by poly(2, 2’-(l, 4-phenylene)-6, 6’-bis(4-phenyl quinoline)) and poly(2, 7-(l, 4-phenylene)-4, 9-diphenyl-l, 6-anthrazoline), were investigated by third harmonic generation spectroscopy
  • A comparison of the nonresonant χ(3) of the series of nine systematically derived polyquinolines showed that a scaling law of the form χ(3) ∼v ∼ Eg-v does not hold; the nonresonant χ(3) was essentially independent of the optical bandgap. These results suggest that structure-χ(3) propeny relationships in polymers cannot be inferred from those of oligomers and model compounds

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