We studied the physical principles of creating 3D microstructures using the method of femtosecond two-photon photopolymerization. We present 3D microstructures of complex topology and demonstrate a wide range of optical applications: elements of photonic integrated circuits, a new generation of micro-optical devices, elements of X-ray optics, and devices with single-photon sources.

The importance of creating hybrid photonic integrated circuits with complex architecture is due to the need for high-performance systems for transmitting and processing large volumes of data. A study is performed of three-dimensional photonic waveguide structures created by direct (3 + 1)D laser printing, with the aim of adding such structures to photonic integrated circuits.

The penetration of hydrogen through protective layers of aluminum oxide fixed on the surface of nanocrystalline (NC) titanium is studied. A film 400 nm thick is prepared by the magnetron sputtering. Radiation- and thermally-induced gas release are employed. It is found that the Al x O 1− x film prevents the release of hydrogen from a sample under both radiation and thermal effects. The temperature of hydrogen extraction from metal hydride accumulators can be reduced by 200–250°C, provided that heating is performed under conditions of surface irradiation by electrons with energies of ∼30 keV and current densities of 2 to 3 μA cm −2 .

This work present a results of investigation of the hydrogen accumulation characteristics in palladium, silver and palladium-silver alloy (Pd60Ag40) at their saturation with hydrogen from different aggregate states of the ambient medium (plasma, liquid, hydrogen atmosphere). The presence of silver in the alloy of palladium-silver leads to the following features: the capture of hydrogen by Pd and Pd60Ag40 samples depends on the method of saturation. In the case, while plasma and electrolytic hydrogen saturation in both samples is being trapped in the same type of traps (not significantly different in binding energy). While the saturation by Sieverts method takes place, traps formed are characteristic for each type of the samples. In case of electrolytic and plasma saturation in palladium and palladium-silver alloy, the main type of trap is the binding of hydrogen in palladium hydride. Alloying palladium with silver does not lead to a decreasing of sorption capacity of the alloy Pd60Ag40 compared to Pd.

С использованием комплекса методов изучены свойства оксидных и оксинитридных титановых покрытий на стали. Установлено, что покрытия состоят из двух фаз с нанокристаллической или аморфной структурой с высокой долей ( 50) межзеренных границ; доминирующая кристаллическая фаза – анатаз. Полученные результаты могут быть использованы при разработке покрытий для стентов, а также при изготовлении аккумуляторов водорода.

С целью поиска материалов для создания аккумуляторов водорода проведены исследования закономерностей насыщения водородом нано- и крупнокристаллических образцов сплава Ti-6Al-4V из плазмы двух типов: высокочастотного и тлеющего разрядов. Сделаны выводы: нанокристаллический сплав Ti-6Al-4V – это материал, перспективный для создания аккумуляторов водорода; водородная плазма высокочастотного разряда – более чистая среда для насыщения водородом, чем плазма несамостоятельного тлеющего разряда.

A set of methods has been applied to study the properties of titanium oxide and oxynitride coatings on steel. It is established that the coatings consist of two phases with a nanocrystalline and an amorphous structure with a high proportion (∼50 %) of grain boundaries; anatase is the dominant crystalline phase. The obtained results can be applied in the development of coatings for stents as well as for manufacturing hydrogen accumulators.

We investigate the laws governing the saturation of nano- and coarse-crystalline Ti-6Al-4V alloy samples with hydrogen from high-frequency and glow discharge plasmas with a view to finding materials suitable for making hydrogen accumulators. We conclude that nanocrystalline Ti-6Al-4V alloy holds promise for creating hydrogen accumulators, and hydrogen plasma of high-frequency discharge origin is a cleaner hydrogen saturation medium than that of non-self-sustained discharge origin.