Junseok Ma

Drop‐on‐Demand Printed Negative Dielectric Anisotropy Liquid Crystal Droplets for Adaptive Complex Beam Manipulation and Assessment

ABSTRACT Adaptive manipulation of vectorial optical fields is important for optical metrology, imaging, and structured light‐related applications, yet existing approaches often rely on bulky or sequentially operated systems. Here we demonstrate an inkjet‐printed negative dielectr...

Field-Programmable Topological Torons in Chiral Nematic Liquid Crystals

Abstract Torons are three-dimensional double-twist solitons in chiral nematic liquid crystals (LCs), bounded by closed defect loops, that behave as particle-like entities while retaining a fully reconfigurable optical response. Here, it is shown that individual torons can be crea...