Fig. 7
From: Switching between H- and J-type electronic coupling in single conjugated polymer aggregates
Photon statistics of single multichain aggregates measured in air. Accumulated second-order cross-correlation, g (2)(Δτ), curves for 57 PPEB-1 a, 47 PPEB-2 b, and 44 PPEB-3 c aggregates. The aggregates were excited by laser pulses (10 MHz repetition rate) to control the difference Δτ in photon arrival time between the two detectors. The antibunching dip at Δτ = 0 is apparent. In b, photon bunching occurs for \(\left| {{\mathrm{\Delta \tau }}} \right| >0\), which is described by a single-exponential fit (orange)
