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ISSN: 1023-5086

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ISSN: 1023-5086

Scientific and technical

Opticheskii Zhurnal

A full-text English translation of the journal is published by Optica Publishing Group under the title “Journal of Optical Technology”

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DOI: 10.17586/1023-5086-2024-91-04-26-39

УДК: 535-4;32.517.4; 551.501.816; 551.510.411

High-sensitive laser probing and structural diagnostics of ordered substances, materials, micro- and nanosystems. Review

For Russian citation (Opticheskii Zhurnal):

Фофанов Я.А., Манойлов В.В. Высокочувствительное лазерное зондирование и структурная диагностика упорядоченных веществ, материалов, микро- и наносистем. Обзор // Оптический журнал. 2024. Т. 91. № 4. С. 26–39. http://doi.org/10.17586/1023-5086-2024-91-04-26-39

 

Fofanov Ya.A., Manoilov V.V. High-sensitive laser probing and structural diagnostics of ordered substances, materials, micro- and nanosystems. Review [in Russian] // Opticheskii Zhurnal. 2024. V. 91. № 4. P. 26–39. http://doi.org/10.17586/1023-5086-2024-91-04-26-39

For citation (Journal of Optical Technology):
-
Abstract:

The subject of study is the laser polarization-optical methods for matter probing. The actuality of this area of research is determined by the need to develop and further improve the methods and means for precision diagnostics of materials. The aim of study is the analysis of the possibilities and prospects for the development of highly sensitive laser polarization-optical and structural diagnostics of ordered substances, functional materials, micro- and nanosystems. Methodology of work. The scanning transmission of the objects under study by polarization-modulated laser radiation is considered. Significant attention is paid to the systematization and generalization of the research results presented in the work. The description of experimental data for actual objects and systems is supplemented by their comparative theoretical analysis. Main results. A hierarchy of criteria for strong and weak polarization responses, which covers a very wide and practically very convenient range of measured birefringence from 1х103 arc. min up to 1х10–4 arc. min, has been studied. It is shown that in this range the analytical scale is linear (proportional), natural noise of laser radiation does not introduce significant obstacles, and the observed polarization-optical responses have the property of additivity, which is useful for their analysis. The effective application of the developed approaches for laser probing and diagnostics of a wide class of objects and media, for example, optical and laser materials and elements with increased optical and structural homogeneity, crystalline magnets, magnetic nanofluids of low concentrations, etc., has been demonstrated. For a magnetic nanofluid based on magnetite in kerosene, polarization responses were registered at a record low minimum volume concentration of 1х10–7. The fundamental possibility of separating and comparatively studying fast random and relatively slow technological variations (increments) of polarization responses of the materials and nanosystems under study has been realized. Practical significance. The results obtained characterize the high sensitivity and quite acceptable information content of the considered methods of matter laser sensing. The approaches being developed can provide a lot of new data about the structural features and associated fluctuations in the parameters of substances and functional materials of wide application. They can be significantly expanded further, for example, to the research and diagnostics of biopolymers, biological fluids, objects of a different nature and composition.

Keywords:

laser probing of matter, hierarchy of polarization responses, optoelectronics, optical materials science, magnetooptics, magnetic nanofluids

Acknowledgements:

the work was carried out according to the state assignment of the Ministry of Science and Higher Education of the Russian Federation № 075-01157-23-00 within the framework of the topic FFZM-2022-0008 (state registration number 122032300138-7)

OCIS codes: 300, 200.3050, 260.0260, 250.0250, 120.0120, 230.0230, 230.0250, 210.0210, 140.0140, 260.5430, 120.4290, 160.4236, 210.3820, 280.4788

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