Phys.org February 7, 2023
Both real-world and experimentally simulated turbulence conditions have revealed that free-space structured light modes are perturbed by turbulence resulting in both amplitude and phase distortions, and consequently, much attention has focused on whether one mode type is more robust than another, but with inconclusive and contradictory results. Researchers in South Africa have shown complex forms of structured light that are invariant under propagation through the atmosphere: the true eigenmodes of atmospheric turbulence. They provided a theoretical procedure for obtaining these eigenmodes and confirmed their invariance both numerically and experimentally. According to the researchers although they have demonstrated the approach on atmospheric turbulence, its generality allows it to be extended to other channels too, such as aberrated paths, underwater, and in optical fiber… read more. Open Access TECHNICAL ARTICLE
Propagation through turbulence… Credit: Advanced Photonics, Vol. 5, Issue 1, 016006 (February 2023)Â