Conveners
Afternoon Session
- Mykyta Redkin (Taras Shevchenko National University of Kyiv)
Deflection, a general wavefront manipulation functionality, which is often considered as a characteristic attribute of gradient metasurfaces, is numerically and experimentally investigated at near-infrared for a simple reflection-mode meta-grating comprising just one Si nanorod per period. Different deflection scenarios are demonstrated that enable different functionalities and multifunctional...
Chalcogenide glasses are known as perspective materials of optoelectronics with a high optical transparency in the infrared region of telecommunication windows 3-5 and 8-12 μm. In this work, influence of composition on structural transitions and optical properties of chalcogenide glasses was studied by Raman technique. Obtained Raman spectra chalcogenide system...
The random lasing (RL) in the multiple scattering active media can occur together with the stimulated Raman scattering (SRS) and form a quasilinear secondary emission spectrum under conditions of the diffuse light propagation. Under these conditions, the stimulated Raman scattering spectrum obtained from the secondary emission spectrum is a more structural than the spontaneous Raman spectrum....
Lock-in amplifiers are widely applied in optical measurements when desired signal buried in noise. In the same time commercial broadband lock-in amplifiers that can make such measurements are expensive. This article presents design of lock-in amplifier that can be used in one-phase, two-phase mode or as two parallel one-phase amplifiers. It is completely digitally-controlled and may be...
Si-based metal-oxide-semiconductor field-effect transistors (MOSFETs) are widely used in high-density integrated circuits for amplifying and switching electronic signals. MOS transistors produced by the silicon on insulator (SOI) technology yield a high switching speed, reduced power consumption and provide a flexible architecture by varying such parameters as thickness of a Si layer and...
