利用聚合物稳定球状相液晶的快速切换双模式光栅

Li Xuan, Du Xiaowei, Guo Peiyun, Zhu Jiliang, Ye Wenjiang, Xu Qin, Sun Yubao

Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China.

Polymers (Basel). 2018 Aug 8;10(8):884. doi: 10.3390/polym10080884.

We demonstrated a fast switchable dual-model grating based on a polymer-stabilized sphere phase liquid crystal. To form binary periodicity layers, the polymer-stabilized sphere phase liquid crystal precursor was sequence ultraviolet cured at an isotropic and sphere phase. This grating jointly modulated both the phase and the amplitude, had six times the diffraction efficiency of that fabricated with polymer-stabilized blue phase liquid crystal. Moreover, the dual-model tunable grating shown polarization-independent and submillisecond response time, which may hold a great potential application in diffractive optics.

我们展示了一种基于聚合物稳定球状相液晶的快速可切换双模式光栅。为了形成二元周期性层，聚合物稳定球状相液晶前驱体在各向同性相和球状相下依次进行紫外固化。这种光栅同时调制相位和幅度，其衍射效率是用聚合物稳定蓝相液晶制造的光栅的六倍。此外，这种双模式可调光栅表现出与偏振无关且响应时间为亚毫秒级，这在衍射光学中可能具有巨大的潜在应用。