S. Yilmaz et al., SCANNING ELECTROOPTICAL AND PYROELECTRICAL MICROSCOPY FOR THE INVESTIGATION OF POLARIZATION PATTERNS IN POLED POLYMERS, Applied physics letters, 63(13), 1993, pp. 1724-1726
Compact and simple experimental setups for scanning pyroelectrical and
electro-optical microscopy are introduced. Their feasibility is demon
strated with scans of periodically poled layers of a nonlinear optical
side-chain polymer. While the scanning pyroelectrical microscope has
a less complex design and is easier to use, the scanning electro-optic
al microscope exhibits better spatial resolution and higher contrast.
Both tools will be essential for optimizing the patterned poling of no
nlinear optical waveguides, modulators, and sensors.