Figure 3
From: Effect of Au substrate and coating on the lasing characteristics of GaAs nanowires
Lasing from an Au coated GaAs NW on glass substrate. (a) Pump power dependent lasing spectra of an Au coated GaAs NW on glass substrate at Tcryo = 77 K. (b) SEM image of the investigated NW. The inset shows the optical image of the lasing NW at 120 mW. (c) Polar plots of longitudinal lasing modes k = 49 and 50.
