3D Chiral Plasmonic Multipatterns for Circularly Polarized Light Detection and Emission
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Chiral metamaterials have received significant attention due to their strong chiroptical interactions with polarized light. However, the fabrication of large-area, hierarchically manufactured chiral plasmonic with high dissymmetry factors (g-factors) over a wide spectral range remains the key barrier to practical applications. Here, we report a facile yet efficient method to fabricate 3D chiral plasmonic multipattern over a large area (>136.9 cm2) and with high g-factors (up to 0.07 in the visible region) by imparting extrinsic chirality to nanostructure polymer substrates through the simple exertion of mechanical force. We also demonstrate the application of our approach in the polarized emission of quantum dots and information encryption, including chiral quick response codes and anti-counterfeiting. Thus, this study paves the way for the rational design and fabrication of large-area chiral nanopatterns and for their application in quantum communications and security-enhanced optical communications.