Photoresponsive behavior of azotolane liquid crystals

Kunihiko Okano; Tomiki Ikeda

doi:10.1117/12.804146

3 February 2009 Photoresponsive behavior of azotolane liquid crystals

Kunihiko Okano, Tomiki Ikeda

Proceedings Volume 7232, Emerging Liquid Crystal Technologies IV; 723209 (2009) https://doi.org/10.1117/12.804146
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

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.

Citation Download Citation

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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