Vol 17, No 2 (2023)

Сегодня модно говорить о цифровизации экономики и квантовых технологиях, страницы аналитических изданий заполнены красивыми диаграммами с анализом статистических сведений о патентах, инновационных вливаниях и сопоставлениями научного потенциала России с зарубежными странами.

Gallium sulfides have a wide band gap in the range of 2.85–3.05 eV and are promising for use in the field of photovoltaics and optoelectronics, nonlinear optics, optoelectronics, terahertz devices, and also as the passivation layers in the group III–V semiconductor devices. In this paper, thin films of gallium sulfide Ga_xS_1-x were obtained for the first time by the plasma-enhanced chemical vapor deposition (PECVD) using a chlorine-involved transport reaction, while the direct high-purity elements (Ga and S) were applied as the original substances. The nonequilibrium low-temperature plasma of an RF discharge (40.68 MHz) at a reduced pressure (0.01 Torr) was the initiator of chemical transformations. The dependences of composition, surface morphology, structural and optical properties of the obtained films on the plasma discharge power were studied.

В 2023 году компания «ЛАССАРД» отмечает 8-летие. На выставке «Фотоника-2023» компания представит внушительный ассортимент своей продукции. Об этих изделиях, о новых результатах компании и планах ее развития на ближайшие годы рассказывает Коммерческий директор компании «ЛАССАРД» Андрей Александрович Нефёдов.

The article considers the process of development of germanium single crystal growth technology by the Czochralsky method, which allowed the application of germanium properties in IR optics and in gamma radiation detection. It is expected that germanium may return to optoelectronics again: recent developments in the cultivation of dislocation-free crystals have shown that germanium is a promising material for next-generation nanoscale electronic devices and for the integration of optical functions on logic circuits.

The article is devoted to the comparison of specifications of the single photon detectors manufactured by QRate (Russia) and ID Quantique (Switzerland). Their quantum efficiencies, dark count rates, and afterpulse probabilities have been examined in this work. The test results have showed the interchangeability of detectors and non-compliance of foreign detectors with the declared specifications and demonstrated the potential capacities of domestic development.

The article considers a special class of optoelectronic devices, namely the television panoramic all-round viewing devices designed for 360° instantaneous viewing. Various design versions of panoramic devices are given, special attention is paid to the all-round television panoramic device with the upper hemisphere that provides an opportunity to observe the upper hemisphere without any dead areas using 4 television channels and solving the problem of UAV detection and counteraction in the anti-aircraft area.