Analyzing lateral [chi](2)-distributions of poled nonlinear optical polymer films

Robert Blum; Markus Adameck; T. Elken; Andrej Ivankov; Manfred Eich

doi:10.1117/12.328569

29 October 1998 Analyzing lateral χ⁽²⁾-distributions of poled nonlinear optical polymer films

Robert Blum, Markus Adameck, T. Elken, Andrej Ivankov, Manfred Eich

Proceedings Volume 3474, Second-Order Organic Nonlinear Optics; (1998) https://doi.org/10.1117/12.328569
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Electric field poling of nonlinear optical (NLO) polymer films at very high electric fields can lead to (chi) ⁽²)- distributions with poor spatial homogeneity, making such films unsuitable for optical devices. We report on further improvements of our scanning second harmonic microscopy using scanning near field optic techniques and on result on scanning optically poled films. Using a scanning Kelvin microprobe, a 2D image of the charge and polarization distribution inside the polymer films can be obtained. Similarities between the charge image and the second harmonic image are observed and allow to analyze the casus of the (chi) ⁽²)-fluctuations. By measuring poling currents through triple stack layers and simultaneously detecting the second harmonic response, the internal electric field inside the NLO-film can be determined. Amorphous SiC:H layers, which were obtained by plasma enhanced chemical vapor deposition, are shown to be suitable for optical buffer layers and for dielectric interface coatings.

Citation Download Citation

Robert Blum, Markus Adameck, T. Elken, Andrej Ivankov, and Manfred Eich "Analyzing lateral χ⁽²⁾-distributions of poled nonlinear optical polymer films", Proc. SPIE 3474, Second-Order Organic Nonlinear Optics, (29 October 1998); https://doi.org/10.1117/12.328569

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