Calculated oscillator strengths for crossed linear optical polarizations along the directions (red line) and  (blue line) for two coupled QD's (Figure 1c) with semicylindrical shape and axis in the direction with (a) = 280 Å, d = 160 Å upon strain order of ε|| = - 0.3% (solid line) and -0.9% (dashed line). (b) = 350 Å, d = 330 Å and ε|| = - 0.1% (solid line), -0.2% (dashed line) and -0.3% (dashed-dotted line). The crossing point stands for isotropic optical emission.
Villegas-Lelovsky et al. Nanoscale Res Lett 2011 6:56 doi:10.1007/s11671-010-9786-8