Figure 4
From: Decoupling gain and feedback in coherent random lasers: experiments and simulations
Schematic description of the round trip phase condition.
The device architecture is schematically depicted with pumped region and TiO2 elements given by yellow and gray areas, respectively. Scattering centers are shown as black full circles and travelling light is pictured with intercalated red and blue ellipses, schematically rendering the wavefronts.
