During this presentation I will introduce the basics of hydrodynamics with light in two important systems: exciton-polariton micro-cavities and warm rubidium vapors. Using the analogy between the non-linear Schrodinger equation and the Gross-Pitaevskii equation, I will answer the question about “Can we observe superfluidity with light ?”
I will also discuss recent non-linear and quantum optics experiments through the perspective of hydrodynamics and I will show what are the surprising consequences of this approach.
Finally, I will review recent attempts to observe an analogue of the Hawking radiation at a black hole horizon with table-top experiments.