Accessing Beyond-Light Line Dispersion and High-

• Tác giả: Nelson de Gaay Fortman, A Femius Koenderink, Debapriya Pal, Peter Schall
• Ngôn ngữ: eng
• Ký hiệu phân loại: 612.01573 Human physiology
• Thông tin xuất bản: United States : ACS photonics , 2025
• Bộ sưu tập: NCBI
• ID: 668997

Tóm tắt

Dense plasmon lattices are promising as experimentally accessible implementations of seminal tight-binding Hamiltonians, but the plasmonic dispersion of interest lies far beyond the light line and is thereby inaccessible in far-field optical experiments. In this work, we make the guided mode dispersion of dense hexagonal plasmon antenna lattices visible by bandfolding induced by perturbative scatterer size modulations that introduce supercell periodicity. We present fluorescence enhancement experiments and reciprocity-based T-matrix simulations for a systematic variation of perturbation strength. We evidence that folding the