Yampolskiy A. Polarimetric diagnostics of inhomogeneous layered media with different optical conductivity.

Українська версія

Thesis for the degree of Doctor of Philosophy (PhD)

State registration number

0822U100851

Applicant for

Specialization

  • 104 - Фізика та астрономія

29-06-2022

Specialized Academic Board

ДФ 26.001.249

Taras Shevchenko National University of Kyiv

Essay

The hardware and software components of the goniopolarimetric complex have been improved and modernized. Its automation includes the introduction of a machine vision system for determining angles, equipping the installation with mechanical drives and unified positioning modules for optical polarization elements, development of a high-sensitivity photodetector module with a wide dynamic range, and software for the complex functioning as a whole. Techniques for measuring the angular distributions of the polarization parameters of optical radiation have been developed, which makes it possible to determine Stokes vectors and Mueller matrices of optical objects. In general, this is done by solving an overdefined linear equations system. The question of corresponding algorithms optimization is considered. The analysis of Mueller matrices is carried out step by step: first the depolarizing component is separated, and then, based on Jones's equivalence theorem in generalized form, the nondepolarizing component is decomposed into matrices responsible for amplitude and phase anisotropy for linearly and circularly polarized waves. A method of measuring attenuated total internal reflection curves is established separately.

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