Figure 7
From: Spatially uniform enhancement of single quantum dot emission using plasmonic grating decoupler

QD intensity enhancement for SPP device with ridge widths of 200 nm for reduced grating periods showing the enhanced emission rates for reduced grating periods.
(a,c) are for the samples with gold and (b,d) for silver. (a,b) are for QD-1 and (c,d) for QD-2.