Laser-made lattice reveals discrete light solitons in tunable atomic vapor

Scientists from the Quantum Technologies Group at the Institute of Physics Zagreb, working with a colleague from the Physics Department at the Faculty of Science (PMF), have experimentally demonstrated discrete one-dimensional solitons in warm rubidium vapor.

The result was achieved in an optically induced photonic lattice, a structure in which light can be guided through a patterned optical environment. The researchers reported the first experimental observation of discrete 1D solitons in this type of tunable atomic-vapor system.

Solitons are localized wave structures that can retain their form as they propagate because of a balance between effects that would otherwise spread or distort them. In photonic settings, they are of interest for studying how light behaves in structured media and for potential optical technologies.

The work highlights warm rubidium vapor as a platform for examining nonlinear light phenomena in an optically controlled lattice. The research was originally reported in Phys.org’s Quantum Physics coverage.