Cheng-Kuan Wu

Electrohydrodynamically Driven Broadband and Color‐Shifting in Cholesteric Liquid Crystals

ABSTRACT Rapid, multimode photonic bandgap tuning of cholesteric liquid crystals (CLCs) is achieved by harnessing ion‐driven electrohydrodynamic (EHD) effects. By utilizing CLCs with negative dielectric anisotropy doped with ions and applying low‐frequency AC voltage, two distinc...