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3 February 2009 Photoresponsive behavior of azotolane liquid crystals
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Abstract
In this study, we irradiated homogeneously aligned films of an azotolane liquid-crystalline polymer with a single femtosecond (fs) laser pulse. Upon irradiation of the single pulse, the change in ▵n was induced by destruction of due to destroy the homogeneous alignment of the azotolane moieties was induced. The estimated value of the change in ▵n was >0.2, and the response time was about 400 ns. When the experiment temperature was below glass transition temperature, the change in alignment induced by the pulsed irradiation was preserved without a thermal relaxation. On the other hand, the changed alignment completely recovered to the initial state with an increase in temperature.
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Kunihiko Okano and Tomiki Ikeda "Photoresponsive behavior of azotolane liquid crystals", Proc. SPIE 7232, Emerging Liquid Crystal Technologies IV, 723209 (3 February 2009); https://doi.org/10.1117/12.804146
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