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

机译:发色团聚集介导的客体-主体聚合物中高稳定的光诱导各向异性

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摘要

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.
机译:我们提出了一种新的材料概念,通过利用发色团聚集,将稳定的双折射光学元件光学刻写为来宾-主体型聚合物。该方法基于偶氮苯发色团的光取向,其聚集导致光诱导的双折射显着增强和稳定。所获得的分子排列(0.3)的有序参数与各向异性的出色热稳定性相结合,使材料系统在含非晶形偶氮苯的聚合物中独树一帜,并提供了一条通过客体-主体型方法设计高效光响应光学元件的途径。

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