Professor Airat Zh. Sakhabutdinov, my blog: Special Issue in International Journal of Mathematics and Systems Science

Dear Colleagues,

Detection of toxic or noxious substances in gases and liquids is becoming increasingly important in industrial production and environmental control tasks. At the same time, the demand for detection and control of individual biological and chemical substances is growing, which is especially noticeable in biomedicine and health care. Accurate concentration analysis can have many critical applications in biology, chemistry, ecology and other areas of science. Detection methods based on changes in refractive index have many advantages over many other analytical methods because they are very sensitive not only to sample concentration, but also to molecular interactions. In addition to this, optical methods for controlling the refractive index are very sensitive and have a great measuring potential even with a small volume of the material to be measured.

One of the most promising approaches is the use of fiber optic sensors as part of a system for monitoring the concentration of substances in liquid or gaseous media. Fiber-optic sensors compared to classical sensors have a number of significant advantages, such as small mass, high sensitivity, electromagnetic compatibility, the possibility of multiplexing, the ability to measure multiple quantities. A great advantage of fiber optic sensors is also their biological and chemical neutrality in a wide range.

Over the past decades, the topic of fiber-optic concentration sensors has been quite widely discussed, with various and very witty solutions being found in publications occasionally. Nevertheless, the interest in this topic is steadily growing, and it is caused both by the development of fiber optic sensor methods and by the development of technologies for the sensor production.

Thus, the actual task is not only to create the measuring systems and sensors, but also to develop mathematical models to investigate the physics of the phenomenon. It allows determining recommendations to the range of parameter selection, providing an appreciable range of change in the refractive index, which in turn depends on the dielectric and magnetic permeability. And the design recommendations should be derived from the results of the study of the mathematical model.

This section serves as a platform for the exchange of knowledge on new methods and technologies, practical implementations, current analysis, conclusions, and experiences in this field of research. It will advance research that promotes the development, integration, and possible improvement of fiber optic sensors? Including concentration sensors in various sectors of the economy. It is designed for designers, researchers, and practitioners to share their knowledge and experience in this field.