Physics of Wave Processes and Radio SystemsPhysics of Wave Processes and Radio Systems1810-31892782-294XPovolzhskiy State University of Telecommunications and Informatics7084UnknownThe effect of spatial dispersion on the optical properties of semiconductors and nanomaterialsAlexandrovYu.M.taronte@yandex.ruYatsyshenV.V.yatsishen@yandex.ru01032017203606304092019Copyright © 2017, Alexandrov Y., Yatsyshen V.2017<p>The report compares the behavior of the optical parameters of normal waves arising in a medium with spatial dispersion for a semiconductor material - the CdS crystal and the nanomaterial - silicene. It is noted that spatial dispersion should be taken into account when analyzing the reflection spectra near exciton resonance.</p>spatial dispersionoptical propertiessemiconductornanomaterialnormal wavesexciton resonanceпространственная дисперсияоптические свойстваполупроводникнаноматериалынормальные волныэкситонный резонанс