Figure 1
From: Linearly polarized photoluminescence of InGaN quantum disks embedded in GaN nanorods

Scanning electron microscopy image of the InGaN/GaN quantum disks grown on GaN nanorods in (a) cross-sectional view and (b) plan-view. Inset in (a) depicts the transmission electron microscopy image of the InGaN/GaN disk region. The blue arrows in (b) represent the excitation laser direction by rotating 360°. The red hexagons are guides for the eye. The numbered nanostructures show nanorods of asymmetric shape.