This study proposes a new approach for correlation-optical diagnostics of a complex optical field created by light scattering on a rough surface. The possibility of using fluorescent nanoparticles of a size of about 30-120 nm for diagnosing the distribution of optical flows in the speckle field has been analyzed. A model experiment for investigation motion of carbon nanoparticles in a speckle field is demonstrated. Under the influence of gradient optical forces, carbon nanoparticles move in an optical field and are captured by the singularities of the field. The change of particle position in time in a three-dimensional field due to the action of longitudinal and transverse component of optical force is demonstrated.
The purpose of the work was to demonstrate the possibility of optical diagnosis in the consideration of sexually transmitted infections in the development of inflammatory processes of the cervix using spectral and polarization methods. Comparison of cervical specimens with and without coilocytosis, irradiated with a range-shifted polarized radiation, showed significant differences in the values of linear dichroism and its spectral dependences. The difference between the coilocyte response characteristic in the range 400-420 nm was calculated using computer programs. As a result, the use of spectropolarization studies and the fluorescence method will improve the accuracy of patient selection for a costly procedure - high-carcinogenic DNA diagnostics of HPV by the standard method of polymerase chain reaction.
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