Photoinduced Modifications of the Nonlinear Optical Response in Liquid Crystalline Azopolymers [electronic resource] / by Raquel Alicante.
Material type: TextSeries: Springer Theses, Recognizing Outstanding Ph.D. ResearchPublisher: Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer, 2013Description: XX, 200 p. online resourceContent type:- text
- computer
- online resource
- 9783642317569
- Physics
- Amorphous substances
- Complex fluids
- Surfaces (Physics)
- Interfaces (Physical sciences)
- Thin films
- Lasers
- Photonics
- Optical materials
- Electronic materials
- Materials -- Surfaces
- Physics
- Laser Technology, Photonics
- Optical and Electronic Materials
- Surface and Interface Science, Thin Films
- Soft and Granular Matter, Complex Fluids and Microfluidics
- Surfaces and Interfaces, Thin Films
- 621.36 23
- TA1671-1707
- TA1501-1820
Introduction and Basic Theory -- Experimental Methods.- Nonlinear Optical Molecular Response -- Piperazine Azopolymer Thin Films -- Films of Doped Low Polar Azopolymers -- Nonlinear Optical Gratings -- General Conclusions -- Appendices.
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.
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