Propagation of polarized light through azobenzene polyester films

L Nedelchev, A Matharu, Ludmila Nikolova, Søren Hvilsted, P.S. Ramanujam

Research output: Contribution to journalJournal articleResearchpeer-review


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.
Original languageEnglish
JournalMolecular Crystals and Liquid Crystals
Pages (from-to)563-575
Publication statusPublished - 2002

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