Empowering Polarization-Independent Fluorescence Enhancement with a C4v-Symmetry Plasmonic Nanocross Antenna Array
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Conventional bow-tie or dimer gap plasmons with C2v-symmetry are highly polarization dependent, which is unforvable in practice for unpolarized incident light sources and randomly dispersed fluorescence emitters. A nanocross configuration with C4v-symmetry cou... ...
