OPTICAL NONLINEARITY IN AZO-ANTHRAQUINONE DOPED LIQUID CRYSTALS
OPTICAL NONLINEARITY IN AZO-ANTHRAQUINONE DOPED LIQUID CRYSTALS
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DOI：
10.1142/s021886350600327x
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发表时间：
2006-06
影响因子：
2.7
通讯作者：
O. Trushkevych;N. Collings;W. Crossland;T. Wilkinson
中科院分区：
文献类型：
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作者：
O. Trushkevych;N. Collings;W. Crossland;T. Wilkinson
研究了2，5偶氮取代蒽醌（ASAQ）染料掺杂液晶的光学非线性。在低功率激光和无外场条件下观察到动态全息光栅的形成。这种新的染料是一个有趣的替代甲基红（MR）掺杂剂的液晶（LC）作为材料的单层光寻址空间光调制器（OASLM）。在ASAQ掺杂的LC中探索厚度和浓度依赖性。研究了器件应用的稳定性和适用性。在MR掺杂的LC系统中，器件的性能迅速恶化，而ASAQ器件非常稳定。
The optical nonlinearity in liquid crystals doped with 2,5 azo-substituted anthraquinone (ASAQ) dye is studied. Dynamic holographic grating formation is observed under conditions of low power laser light and no external fields. This new dye is an interesting alternative to methyl red (MR) dopant for liquid crystals (LCs) as materials for single-layer optically addressed spatial light modulators (OASLMs). The thickness and concentration dependence are explored in ASAQ-doped LCs. Stability and suitability for device applications are researched. In MR-doped LC systems the performance of the devices deteriorates quickly, while ASAQ devices are remarkably stable.