New instability in superconductors under external dynamic pair breaking

For superconducting films exposed to uniform laser radiation, it is found that the uniform distribution of quasiparticles is unstable when the system is driven sufficiently far from equilibrium. For $\frac{T}{T_c}<0.7\mathrm{}$, this instability occurs at lower laser intensities than the first-order supernormal transition for the uniform system and can drive the system into an intermediate state (dissipative structure).