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首页> 外文会议>Conference on Liquid Crystals >Stable dopant for Liquid Crystals as materials for Optically Addressed Spatial Light Modulators
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Stable dopant for Liquid Crystals as materials for Optically Addressed Spatial Light Modulators

机译：液晶稳定掺杂剂作为光学寻址的空间光调制器的材料

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摘要

It is shown that 2,6 azo-substituted anthraquinone dye-doped systems are interesting alternative to Methyl Red (MR) doped NLCs as materials for Optically Addressed Spatial Light Modulators (OASLMs) without amorphous silicon layer. Nonlinearity in liquid crystals doped with new dye is studied. Dynamic holographic grating formation is observed under conditions of low power laser light and no external fields. The samples are planar and normal incidence of light is used. The results for dynamic holographic studies are compared with azo dye MR crystals and C_(60). It is shown that this dopant competes with the best known materials in terms of performance in 10 ms speed regime. The system under investigation possesses very good time stability and outstanding light fastness (even a power exceeding working light intensity 100 times is not destructive to the material). It does not form permanent component at any conditions, which is vital for applications where constant change of written information is required (OASLMs, dynamic holography, all-optical switching). Possible mechanisms and the nature of effects that lead to the photorefractive effect in the anthraquinone system are discussed. Resolution of the devices, their efficiency and optimal working conditions are investigated.
机译：结果表明，2,6偶氮取代的蒽醌染料掺杂系统是有趣的替代甲基红色（MR）掺杂NLC作为用于光学寻址的空间光调制器（OASLMS）的材料而没有非晶硅层。研究了掺杂新染料的液晶中的非线性。在低功率激光灯和没有外部场的条件下观察到动态全息光栅形成。样品是平面的，使用光的正常发生率。将动态全息研究的结果与AZO染料MR晶体和C_（60）进行比较。结果表明，在10毫米速度制度的性能方面，掺杂剂与最着名的材料竞争。调查中的系统具有非常好的时间稳定性和出色的耐光性（即使是电源超过工作光强度100次没有破坏到材料）。它在任何条件下都不形成永久性组件，这对于所需的持续变化的应用至关重要（OASLMS，动态全息术，全光切换）。讨论了导致蒽醌系统中的光焦效应的可能机制和效果的性质。调查了设备的分辨率，其效率和最佳工作条件。

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