Journal
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
Volume 375, Issue -, Pages 563-575Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10587250210600
Keywords
azobenzene; polymers; chirality; anisotropy; polarization
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When elliptically polarized light of appropriate wavelength Corresponding to trans-cis-trans isomerisation process is incident on thin films of azobenzene polyesters, a helical structure is induced. We investigate the propagation of the exciting light beam (self-induced) as well as a probe light beam outside the absorption band through the polyester films. Investigations are carried out in one amorphous and one liquid crystalline polyester. We show that amorphous polyester after irradiation behaves like classical helical material.
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