Fig. 5From: Fabrication and Optical Properties of Strain-free Self-assembled Mesoscopic GaAs Structures a μ-PL spectrum obtained with a 100× times objective (spot diameter ca. 1 μm). b μ-PL intensity map with a large spot size (5 μm) in steps of 20 μm along a straight line along sample with 1 nm GaAs filling of the hole-mound structures at 10 K (note the logarithmic scale of the color map, letting some of the peaks appear smaller)Back to article page