High momentum two-dimensional propagation of emitted photoluminescence coupled with surface lattice resonance.

ABSTRACT: Dramatic fluorescence enhancement in two-dimensional (2D) van der Waals materials (vdWMs) coupled to plasmonic nanostructures has the potential to enable ultrathin, flexible, and high-brightness illumination devices. However, addressing the limitation of locally scattered small plasmon-enhanced areas remains challenging. Here, we present a 2D plasmonic enhancement of photoluminescence (PL) spanning nearly 800 μm², enabled by surface lattice resonance (SLR) in a 2D vdWM-Au slot lattice hybrid. The Au slot lattice is designed and fabricated using Babinet's principle and Rayleigh's anomaly to maximize radiative decay rate and induce non-local photo-excitation in a MoSe₂ monolayer. For emitted PL coupled with SLR, enhanced by up to 32-fold, we investigate its in-plane dir

SUBMITTER: Koo Y 

PROVIDER: S-EPMC12181263 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature