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Spatiotemporal statistics of optical turbulence beyond Taylor’s frozen turbulence hypothesis
JOSA A- received 02/07/2024; accepted 04/22/2024; posted 04/25/2024; Doc. ID 520550
- Abstract: Currently, limitations in modeling the temporal behavior of light propagating through atmosphericturbulence stem from the Taylor’s frozen turbulence hypothesis (TFTH). Indeed, under certain conditionsit has been reported to be unreliable, often leading to inaccurate predictions. On the other hand, inFluid Dynamics an alternative has been validated: the random sweeping hypothesis. Nevertheless, itsapplicability to optical turbulence has remained unexplored. This work introduces the first controlledexperiment testing this hypothesis on the spatiotemporal properties from image wander. The existenceof two characteristic times are observed, one associated to TFTH decorrelation and a second potentiallylinked to the sweeping hypothesis.