Figure 4
From: Effect of Au substrate and coating on the lasing characteristics of GaAs nanowires
Peak power of the NW emission versus pump power (L–L plot) obtained from lasing spectra of (a) NWs on Au film, (b) Au-coated NWs and (c) NWs on glass at Tcryo = 77 K. Different colored symbols indicate NWs with different dimensions, which are summarized in tables ST1 to ST3. The thick black line shows calculated L–L curves of “average” NWs defined in table ST7. The vertical dashed lines indicate the approximate threshold power necessary for lasing.
