Young Min Song

Wafer-scale conformal metasurface optics

Curved and conformal optics provide additional geometric degrees of freedom that enable enhanced optical performance while satisfying non-optical constraints such as ergonomics, aerodynamics, and wearability. However, existing fabrication approaches for curved metasurfaces are li...

Crystallization‐Driven Helical Conjugated Polymer Nanowires for Circularly Polarized Light‐Addressable Ferroelectric Physical Unclonable Functions

Supramolecular helices of conjugated polymers (CPs) offer versatile chiroptical selectivity, yet their responses are often limited to passive optical readouts and lack stability as nonvolatile electrical states. Here, we report crystallization-driven helical CP nanowires (NWs) th...