Aznakayeva D. Research and modeling of nanoscale modulators

In the dissertation new results in the area of optoelectronics application for nanosized electro optical modulators construction for radiotechnical systems are presented. The novelty is research, modeling and manufacturing of highly effective broadband and narrow-band electro optical nanomodulators based on graphene and other two-dimensional nanomaterials are provided. Modulation of light from the near-infrared to visible range of wavelengths with extremely low electrical voltages on the gate was achieved. The developed electro optical nanomodulators was achieved the modulation depth in the transmission mode up to 30% at the radiation wavelength in 1.1 micrometers. New technology for construction of protective graphene barrier of copper and silver samples to protect their plasmon characteristics is developed. Experimentally and theoretically established that by using of single-layer and double-layer graphene as protected cover provide protection of copper and silver from oxidation and deterioration of their electric and optical characteristics. Key words: nanosized electro optical modulators, electromagnetic radiation, graphene, spectra, heterostructures.