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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers & Short Notes >Extremely High Degree Photoinduced In-Plane Reorientation in Azobenzene-Containing Polymer Liquid Crystal Film Using 633 nm Light
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Extremely High Degree Photoinduced In-Plane Reorientation in Azobenzene-Containing Polymer Liquid Crystal Film Using 633 nm Light

机译：使用633 nm光在含偶氮苯的聚合物液晶薄膜中进行极高程度的光诱导面内取向

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摘要

The thermally enhanced photoinduced reorientation behavior of liquid crystalline (LC) polymethacrylate films comprising 4-methoxyazobenzene side groups with different spacer lengths between the azobenzene group and the polymer backbone was investigated based on axis-selective Z-to-E photoisomerization using linearly polarized (LP) 633 nm light and thermal amplification of the photoinduced anisotropy. A high-order in-plane reorientation parallel to the polarization (E) of LP 633 nm light was accomplished regardless of the spacer length. We found that the initial orientation of the mesogenic groups played an important role in the reorientation, and clarified the reorientation mechanism by polarization absorption spectroscopy.
机译：基于线性极化（LP）的轴选择性Z-to-E光异构化，研究了在偶氮苯基和聚合物骨架之间具有不同间隔长度的4-甲氧基偶氮苯侧基的液晶（LC）聚甲基丙烯酸液晶薄膜的热增强光致重定向行为。 ）633 nm光和热放大的光致各向异性。不管间隔物的长度如何，都可以完成与LP 633 nm光的偏振（E）平行的高阶面内重新定向。我们发现介晶基团的初始取向在重新取向中起重要作用，并通过偏振吸收光谱阐明了重新取向的机理。

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