Laser radiation caustics method for quantitative diagnostic of transparent inhomogeneous media

Vedyashkina, A.V.; Rinkevichyus, B. S.; Raskovskaya, I. L.; Pavlov, I. N.

doi:10.1109/piers.2017.8261842

Cited by 1 publication

(1 citation statement)

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“…During SLR refraction in a stratified medium caustics can be observed both inside and at the exit of the medium where the rays are already straight lines [11]. In [12,13], the possibility of applying the caustic method of laser radiation to determine the parameters of stratified media was described. In this approach, when solving the inverse problem of reconstructing the properties of optical inhomogeneities, the informative parameters are the coordinates of the caustic surfaces resulting from refraction.…”

Section: Introductionmentioning

confidence: 99%

Optical-electronic complex for investigation of the processes of heat and mass transfer by laser contactless method

Vedyashkina¹,

Rinkevichyus²,

Pavlov³

et al. 2019

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The work is devoted to development and creation of an optoelectronic complex for determination of the inhomogeneous condensed media parameters, principle of which is based on the method of structured laser radiation caustics. This method is described for determining the parameters of diffusion layer of liquid according to the position of caustic surfaces during longitudinal probing by a plane laser beam. Special software is presented that allows determining the distribution of the refractive index in the diffusion layer of liquid by comparing theoretically calculated and experimental refractograms. The results of the complex operation for the diffusion layer arising between the electrolyte solution and water for different concentrations of the electrolyte solution are shown. New method for determining the temperature of the surface of a cold body placed in a transparent liquid is presented, it is based on determining the location of the singular points of caustic surfaces arising when the boundary layer is probed by the horizontal element of structured beam.

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Section: Introductionmentioning

confidence: 99%