The nonlinear propagation of coherent optical fields has been extensively explored in the
framework of nonlinear optics, while the linear propagation of incoherent fields has been …

There is growing physical and mathematical interest in the hydrodynamics of
dissipationless/dispersive media. Since GB Whitham's seminal publication fifty years ago …

Lasers provide the ability to accurately deliver large amounts of energy into confined regions
of a material in order to achieve a desired response. For opaque materials, this energy is …

Extended shallow water wave equations are derived, using the method of asymptotic
expansions, from the Euler (or water wave) equations. These extended models are valid one …

The superradiant amplification in the scattering from a rotating medium was first elucidated
by Sir Roger Penrose over 50 years ago as a means by which particles could gain energy …

We demonstrate that wave-breaking dramatically affects the dynamics of nonlinear
frequency conversion processes that operate in the regime of high efficiency (strong multiple …

We investigate the propagation of a dark beam in a defocusing medium in the strong
nonlinear regime. We observe for the first time a shock fan filled with noninteracting one …

Quantum gases of atoms and exciton-polaritons are now well-established theoretical and
experimental tools for fundamental studies of quantum many-body physics and suggest …

Photon fluids have recently found applications in the simulation of a variety of physical
phenomena such as superfluidity, vortex instabilities, and artificial gauge theories. Here we …

We report on the formation of a dispersive shock wave in a nonlinear optical medium. We
monitor the evolution of the shock by tuning the incoming beam power. The experimental …