![Photoinduced Modifications of the Nonlinear Optical Response in Liquid Crystalline Azopolymers](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
![Photoinduced Modifications of the Nonlinear Optical Response in Liquid Crystalline Azopolymers](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
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Photoinduced Modifications of the Nonlinear Optical Response in Liquid Crystalline Azopolymers
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- 87,99 €
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- 87,99 €
Publisher Description
Nonlinear optical (NLO) phenomena such as frequency conversion have played a key role in the development of photonic technologies. This thesis reports a detailed study of the molecular response of a large variety of push-pull organic compounds using the Second Harmonic Generation technique, which will serve as a starting point for the investigation at the macroscopic scale of azobenzene-based liquid crystalline polymeric films and their blends with highly efficient NLO chromophores. These materials are designed with the aim of exploiting their photo-addressability in order to tailor their nonlinear behaviour. The magnitude and symmetry of their nonlinear response was successfully controlled via light irradiation and thermal treatments. Moreover, as a specific application, the recording of efficient NLO gratings was achieved and is described here.