Barak Alfassi

Boundary force effects exerted on solitons in highly nonlinear media.

We study the effects caused by remote boundaries on soliton dynamics in nonlinear media with a large range of nonlocality, and demonstrate theoretically and experimentally how asymmetric boundary forces can lead to soliton steering and oscillation in predetermined trajectories.

Random-phase surface-wave solitons in nonlocal nonlinear media

We demonstrate, theoretically and experimentally, incoherent surface solitons in a noninstantaneous nonlocal nonlinear media. These incoherent surface waves are located at the interface between a nonlinear medium with long-range nonlocality and a linear dielectric medium (air).

Nonlocal surface-wave solitons

We demonstrate, experimentally and theoretically, surface-wave solitons occurring at the interface between a dielectric medium (air) and a nonlinear material with high range of nonlocality.

Incoherent surface-solitons in effectively- instantaneous nonlinear media

We study, theoretically and experimentally, random-phase surface-solitons in instantaneous nonlocal nonlinear media, where the key mechanism for self-trapping is played by the nonlocal nature of the nonlinearity.

Random-Phase Surface-Wave Solitons in Nonlocal Nonlinear Media

We demonstrate, theoretically and experimentally, random-phase (incoherent) surface-wave solitons localized at the boundary between a dielectric medium (air) and a nonlinear material with a large range of nonlocality.

Infinite-range interactions between solitons in highly-nonlocal nonlinear media

We study soliton interactions in the highly-nonlocal thermal nonlinearity, demonstrating that solitons propagating in different samples, connected by metal-foils, attract one another. We demonstrate 3D-interactions between widely-separated solitons, which spiral about each other from afar.

Boundary force effects exerted on solitons in nonlinear media with a very large range of nonlocality

We study soliton dynamics arising from forces exerted by far away boundaries, and demonstrate soliton oscillations and steering in pre-determined trajectories.