Fig. 1From: Optical Properties of a Quantum Dot-Ring System Grown Using Droplet Epitaxy a AFM image of a typical QR. b Geometrical model of the QR in xyz space. c, d Height of the QR through the directions shown in the insets. The ring radius in the calculation is 336 nm. Notice that the actual box size used in the calculation is larger (900-nm side)Back to article page