We study photo-activated nonlinear deformation of periodic polydomain glassy nematic coatings on soft elastic substrates. The director fields are piecewise constant with rank-1 connection at the domain boundaries and form regular arrays of disclinations of different charges at the junctions. Based on numerical simulations, we show that conical depression and elevation appear at the positive and negative disclinations respectively. The phenomenon is attributed to bend of the coating controlled by interfacial shear force, and the mechanism can be utilized to create various novel surface topographies which have not been reported previously. Although our exploration is concerned with the theoretical aspect, the results may inspire future experimentation and provide insights for designing photo-switchable surfaces.

我们研究在软弹性基材上周期性多畴玻璃状向列涂层的光活化非线性变形。导向域是分段常数，在域边界具有1级连接，并在结处形成不同电荷的向错的规则阵列。基于数值模拟，我们显示圆锥形凹陷和升高分别出现在正向和负向。该现象归因于由界面剪切力控制的涂层的弯曲，并且该机制可以用于产生以前没有报道的各种新颖的表面形貌。尽管我们的探索与理论方面有关，但结果可能会激发未来的实验，并为设计光开关表面提供见解。