Ellipsometry of thin films of biological objects under conditions of total internal reflection

An analysis of the ellipsometric parameters of the reflected light from the prism – test material – air system is carried out when circularly polarized light is incident on it under the conditions of the onset of the phenomenon of total internal reflection. At the onset of total internal reflection,...

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Main Author: Valeriy V. Yatsishen
Format: Article
Language:English
Published: Povolzhskiy State University of Telecommunications & Informatics 2022-01-01
Series:Физика волновых процессов и радиотехнические системы
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Online Access:https://journals.ssau.ru/pwp/article/viewFile/9999/8837
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author Valeriy V. Yatsishen
author_facet Valeriy V. Yatsishen
author_sort Valeriy V. Yatsishen
collection DOAJ
description An analysis of the ellipsometric parameters of the reflected light from the prism – test material – air system is carried out when circularly polarized light is incident on it under the conditions of the onset of the phenomenon of total internal reflection. At the onset of total internal reflection, the ellipsometry parameter Δ shows high variability with the angle of incidence, in contrast to the parameter r0. It is shown that TIR occurs when the angle of incidence is not equal to the critical angle of the adjacent media – for two different materials, these angles differ from each other. In the case of a film, the TIR phenomenon occurs at an angle equal to the critical angle at the prism-air interface and does not depend on the film material. The results obtained show the high efficiency of using the ellipsometric method together with circularly polarized incident radiation for diagnostics of thin films made of biological material.
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spelling doaj.art-00a78a13e9634bf1938bae05f73b7b5a2023-12-22T10:31:41ZengPovolzhskiy State University of Telecommunications & InformaticsФизика волновых процессов и радиотехнические системы1810-31892782-294X2022-01-0124471210.18469/1810-3189.2021.24.4.7-128568Ellipsometry of thin films of biological objects under conditions of total internal reflectionValeriy V. Yatsishen0https://orcid.org/0000-0003-4185-2333Volgograd State UniversityAn analysis of the ellipsometric parameters of the reflected light from the prism – test material – air system is carried out when circularly polarized light is incident on it under the conditions of the onset of the phenomenon of total internal reflection. At the onset of total internal reflection, the ellipsometry parameter Δ shows high variability with the angle of incidence, in contrast to the parameter r0. It is shown that TIR occurs when the angle of incidence is not equal to the critical angle of the adjacent media – for two different materials, these angles differ from each other. In the case of a film, the TIR phenomenon occurs at an angle equal to the critical angle at the prism-air interface and does not depend on the film material. The results obtained show the high efficiency of using the ellipsometric method together with circularly polarized incident radiation for diagnostics of thin films made of biological material.https://journals.ssau.ru/pwp/article/viewFile/9999/8837elliptically polarized lightellipsometry parametersangular reflection spectratotal internal reflectioncritical angle
spellingShingle Valeriy V. Yatsishen
Ellipsometry of thin films of biological objects under conditions of total internal reflection
Физика волновых процессов и радиотехнические системы
elliptically polarized light
ellipsometry parameters
angular reflection spectra
total internal reflection
critical angle
title Ellipsometry of thin films of biological objects under conditions of total internal reflection
title_full Ellipsometry of thin films of biological objects under conditions of total internal reflection
title_fullStr Ellipsometry of thin films of biological objects under conditions of total internal reflection
title_full_unstemmed Ellipsometry of thin films of biological objects under conditions of total internal reflection
title_short Ellipsometry of thin films of biological objects under conditions of total internal reflection
title_sort ellipsometry of thin films of biological objects under conditions of total internal reflection
topic elliptically polarized light
ellipsometry parameters
angular reflection spectra
total internal reflection
critical angle
url https://journals.ssau.ru/pwp/article/viewFile/9999/8837
work_keys_str_mv AT valeriyvyatsishen ellipsometryofthinfilmsofbiologicalobjectsunderconditionsoftotalinternalreflection