Proceedings of young scientists and specialists of the Samara UniversityProceedings of young scientists and specialists of the Samara University2782-2982Samara National Research University9293Research ArticleNanostructured silicon optical propertiesBezmelnitsinDmitry Sergeevich<p>student IV course of the Faculty of electronics and instrument engineering</p>dmitriy09-98@mail.ruLizunkovaDaria Aleksandrovna<p>senior lecturer of the Department of Nanoengineering</p>daria.lizunkova@yandex.ruShishkinIvan Aleksandrovich<p>graduate student of the Physics Faculty, of the Samara University</p>shishkinivan9@gmail.comSamara University151220201 (16)26126626082021Copyright © 2020, Proceedings of young scientists and specialists of the Samara University2020<p>This work presents the results of studies of the optical properties of structures with silicon nanowires formed by metal-stimulated chemical etching (MACE). The dependence of the reflection coefficient on the etching time shown. We also simulated the propagation of an electric field on the surface of a silicon filament structure, which made it possible to describe the capture of an electric field in nanowires, leading to a decrease in the reflection coefficient in the entire investigated spectral range. The electric field distribution simulated using the COMSOL Multiphysics software package. Modeling the transmission of light in such a structure showed that the filaments capture light well, but the real system of silicon filaments is more complex, which is not taken into account in this model.</p>МСХТкремниевые нанонитипористый кремнийнаноразмерные структурыкоэффициент отраженияMACEsilicon nanowiresnanoscale structuresreflection coefficientporous silicon