Method for detecting turbulent conditions using the interaction of a laser beam with a thin film photochromic and device implementing said method

摘要

Assessment procedure turbulence parameters of a medium comprising the following stages: - illumination of a laser beam propagating in said medium, a film of photochromic organic material may comprise molecules of azobenzene, or spiropyran, or stilbene, or coumarin, or fulgide, creating a network of such illumination surface in said film including serrations whose deformations are function parameters turbulence; - a step of acquiring images includes a structuring elementary areas associated with said serrations, more or less reduced and representative of turbulence parameters of said medium; - a step of processing of said images allowing evaluation of turbulence parameters of said medium.