Random lasers are intriguing devices with promising applications as light sources for imaging, sensing, super-resolution spectral analysis or complex networks engineering. can be obtained from optically pumped dyes, optical fibres and crystals electrically semiconductor heterostructures. Semiconductor random usually fabricated by introducing scattering defects into the active layer, adding a de...

We investigate the problem of spatial instability of electrically driven viscous jets with finite electrical conductivity and in the presence of either a constant or a variable applied electric field. A mathematical model, which is developed and used for the spatially growing disturbances in electrically driven jet flows, leads to a lengthy equation for the unknown growth rate and frequency of ...