Optical Characteristics of Stretchable Chiral Liquid Crystal Elastomer under Multiaxial Stretching

Chiral liquid crystal elastomers (CLCEs) are soft photonic materials that exhibit both the characteristics of nanoscale periodic helical structures and mechanical properties rubber. Owing to its elasticity, structural color CLCEs can be tuned through deformations known as mechanochromism. Thus far, there is significant research attention exploring mechanochromism CLCEs. However, most studies have only discussed shifting under uniaxial deformation. Therefore, optical chiral deformation behaviors multiaxial stress not well understood. This study investigates (uniaxial, biaxial, out-of-plane) stretching-induced structure change resulting The results confirm stretching leads a loss intrinsic circular polarization selectivity in due helix unwinding deformations, while biaxial out-of-plane maintain polarization.