Аннотация:Development of practical applications of sources, detectors, convertors and other devices in terahertz (THz) range requires continues improvement of their functional properties and search for new materials. Nanostructured objects allowing introduce new properties to the bulk materials tailoring them for certain practical applications. As an example, several works showed perspectives of practical use of porous silicon in THz range [1-4]. In this work the dielectric properties of a novel material – nanostructured alumina oxyhydroxide (NOA) and some related nanocomposites were studied in THz range.