First Observation of 1D Discrete Solitons in a Rubidium Vapor Photonic Lattice
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On October 22, 2026, Phys.org reported that a collaborative team from the Institute of Physics in Zagreb and PMF has experimentally observed one-dimensional discrete solitons for the first time in a light-induced photonic lattice in warm rubidium vapor. In the experiment, with a probe laser power of about 6 mW, nonlinear self-focusing counteracted discrete diffraction, and the beam maintained a nearly invariant transverse profile during propagation. The study was published in Laser & Photonics Reviews; the theoretical model incorporates the full atomic hyperfine structure and agrees well with the experiment, and the lattice can be tuned via the frequency and intensity of the coupling light. This is the first report on the event, and no follow-up developments are available yet.
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- Phys.org Optics & PhotonicsPicksLaser-Induced Lattice Reveals One-Dimensional Discrete Optical Solitons in Tunable Rubidium Vapor
A joint team from the Institute of Physics in Zagreb and PMF has experimentally observed one-dimensional discrete solitons for the first time in an optically induced photonic lattice in warm rubidium vapor. At a probe laser power of about 6 mW, nonlinear self-focusing counteracts discrete diffraction, and the beam maintains an almost invariant transverse profile as it propagates. The study was published in Laser & Photonics Reviews; a model incorporating the full atomic hyperfine structure agrees with the experiment, and the lattice can be tuned via the coupling beam frequency and intensity.
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