High and stable photoinduced anisotropy in guest-host polymer mediated by chromophore aggregation

Arri Priimägi, Andriy Shevchenko, Matti Kaivola, Francisco Rodriguez, Martti Kauranen, Paul Rochon

    Research output: Contribution to journalArticleScientificpeer-review

    11 Citations (Scopus)
    6 Downloads (Pure)

    Abstract

    We present a novel materials concept for optical inscription of stable birefringent optical elements into guest–host type polymers by making use of chromophore aggregation. The method is based on photoalignment of azobenzene chromophores, the aggregation of which leads to significant enhancement and stabilization of the photoinduced birefringence. The obtained order parameter of the molecular alignment (0.3) in combination with the exceptional thermal stability of the anisotropy renders the material system unique among amorphous azobenzene-containing polymers and provides a route toward designing efficient photoresponsive optical elements through the guest–host type approach.
    Translated title of the contributionHigh and stable photoinduced anisotropy in guest-host polymer mediated by chromophore aggregation
    Original languageEnglish
    Pages (from-to)1813-1815
    JournalOptics Letters
    Volume35
    Issue number11
    DOIs
    Publication statusPublished - 2010
    Publication typeA1 Journal article-refereed

    Publication forum classification

    • Publication forum level 2

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