Journal article
Polarization holographic gratings in side-chain azobenzene polyesters with linear and circular photoanisotropy
We investigate thin phase polarization holographic gratings recorded with two waves with orthogonal linear polarizations in materials in which illumination with linearly/circularly polarized light gives rise to linear/circular birefringence. The theoretical analysis shows that the presence of circular photoanisotropy changes significantly the diffraction characteristics of the gratings.
The intensities of the waves diffracted in the +1 and -1 orders of diffraction and their ratio depend substantially on the reconstructing-wave polarization. Experiments with films of side-chain liquid-crystalline azobenzene polyester that is a photoanisotropic material of the considered type confirm the unusual polarization properties.
It is shown that polarization holography may be used for real-time simultaneous measurement of photoinduced linear and circular birefringence.
Language: | English |
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Year: | 1996 |
Pages: | 3835-3840 |
ISSN: | 15394522 , 00036935 , 21553165 and 1559128x |
Types: | Journal article |
DOI: | 10.1364/AO.35.003835 |