Light-driven modulation of scalar order parameter for high spatial resolution
Light-driven modulation of scalar order parameter for high spatial resolution
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DOI：
10.1209/0295-5075/131/26001
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发表时间：
2020-07-01
期刊：
影响因子：
1.8
通讯作者：
Yamamoto, Jun
中科院分区：
文献类型：
--
作者：
Chien, Chiao-Ying;Yamamoto, Jun
提高光调制标量序参量的空间分辨率允许对液晶中的功能分子进行高精度操纵。研究表明，通过偶氮苯单体在水相中的聚合，克服了偶氮苯扩散引起的分辨率差的问题。在相同的激发光下，定量研究了未聚合和聚合样品的光致双折射率的空间变化。非聚合样品的分辨率随时间衰减，而聚合样品可以保持该特征接近于刺激光的特征。
Improving the spatial resolution of the light-modulated scalar order parameter allows high-precision manipulation of functional molecules in the liquid crystals. This study shows that the poor resolution caused by the diffusion of azobenzene is overcome through the polymerization of an azobenzene monomer in the nematic phase. The photo-induced spatial variation of birefringence of non-polymerized and polymerized samples is quantitatively investigated under the same stimulating light. The resolution of the non-polymerized sample decays with time, while the polymerized sample can maintain this feature close to that of the stimulating light.