Combined use of optical technologies for complex diagnostics of opaque nonlinear optical materials

This paper presents the results of creating a system for diagnosing the defective structure of materials that are opaque in the visible region, based on the combination of methods: thermal imaging detection of large defects, digital holography of defects, wideband radiometry in the area of continuum absorption to measure transmission, determination of the complex refractive index of the dispersion medium and constants of interpolation polynomials for dispersion. It is shown that the combined use of interpolation polynomial constants and cluster characteristics allows determining the refractive index of the dispersed phase to further interpret its composition. •Use of interpolation polynomial constants allows determining the refractive index of the dispersed phase to further interpret its composition.