Lu Yan, Jeng Shie-Chang
Opt Lett. 2021 Jan 15;46(2):318-321. doi: 10.1364/OL.414880.
The anisotropy of a thin film can be created by a wide variety of methods and it has found many applications. Liquid crystal (LC) molecules are aligned in a specific orientation on a rubbed polyimide film for conventional LC displays (LCDs). The rubbing process on the polyimide film controls the azimuthal and polar angles of the LCs, and it can cause physicochemical anisotropy on the polyimide film and produce the birefringence in the azimuthal direction. Knowing the rubbing-induced optical axis of polyimide films is crucial for achieving optimum electro-optical properties of LCDs. The rubbing-induced and the resolution less than 2 deg for determining the optical axis of the rubbed polyimide are obtained by applying Tamm plasmon polaritons in this Letter.
薄膜的各向异性可以通过多种方法产生，并且已经有了许多应用。在传统液晶显示器（LCD）中，液晶（LC）分子在经过摩擦的聚酰亚胺薄膜上沿特定方向排列。聚酰亚胺薄膜上的摩擦过程控制着液晶的方位角和极角，并且会在聚酰亚胺薄膜上引起物理化学各向异性，进而在方位方向上产生双折射。了解聚酰亚胺薄膜的摩擦诱导光轴对于实现LCD的最佳电光性能至关重要。在本信函中，通过应用塔姆表面等离激元极化激元，获得了用于确定摩擦聚酰亚胺光轴的小于2度的摩擦诱导分辨率。
