Figure 6: Experimental comparison of nanolasers with and without superradiant coupling.
From: Giant photon bunching, superradiant pulse emission and excitation trapping in quantum-dot nanolasers
Measured output intensity versus pump power for pulsed excitation (a). The black symbols correspond to the data shown in Fig. 2 and represent a nanolaser with superradiant coupling between its InGaAs quantum-dot emitters. The red symbols are taken from a measurement on another sample with similar cavity parameters (comparable cavity-Q-factor and pillar diameter) but different active material based on AlInGaAs quantum dots. Here, the emitters do not exhibit superradiant coupling, as indicated in (b) showing the time-resolved emission for various excitation powers.
