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Photoinduced anisotropy and polarization holography on UV exposure in films of N-benzylideneaniline in PMMA matrix

Ilieva D., Nedelchev L.

Optica Applicata

2012

Vol. 42, nr 1

207-214

In this paper, we present a study of the photoinduced processes in films of N-benzylideneaniline incorporated in a polymethylmethacrylate (PMMA) matrix both by spectrophotometric and holo-graphic methods. Photodichroism of the order of ?D = 0.15 is induced in the films by polarized UV light at room temperature. We are also able to record stable holographic gratings in these materials for the first time to the best of our knowledge.