Figure 3
From: Robustness of replica symmetry breaking phenomenology in random laser

Characterization of random laser emission.
Characterizations as a function of pumping energy of the emission from the three samples: Ls = 19.0 mm (a), 7.44 mm (b) and 900 μm (c). In the left column the FWHM (purple, left y-axis) and the peak intensity (green, right axis) are reported. In the right one the α-index (blue, left y-axis) and the |q|max are shown. The threshold energy can be detected in correspondence of the narrowing of the spectrum or in the change of the slope of the peak intensity plot. An abrupt change of |q|max can be found at threshold, in a way independently on the presence of the Lévy regime .