Figure 2
From: Fluorescence-excitation and Emission Spectroscopy on Single FMO Complexes

Widefield image of a sample with an FMO concentration of 320 pM.
For excitation the output of the laser was wobbled between 800 nm and 809 nm at a rate of 0.3 s−1. The excitation intensity was 175 W/cm2 and the acquisition time was 15 s.